tag:blogger.com,1999:blog-183220562018-06-18T12:29:10.962-04:00Homeschool Math BlogMath teaching ideas, links, worksheets, reviews, articles, news, Math Mammoth stuff, and more - anything that helps YOU to teach math. ~ Maria MillerMath Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.comBlogger1073125tag:blogger.com,1999:blog-18322056.post-13583442757856905202018-06-18T12:29:00.000-04:002018-06-18T12:29:10.859-04:00Free math apps - virtual manipulatives<div class="separator" style="clear: both; text-align: center;"><a href="https://www.mathlearningcenter.org/resources/apps" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="1" data-original-height="752" data-original-width="837" height="287" src="https://2.bp.blogspot.com/-6_mFHmIbDOA/Wyfdc-g_TWI/AAAAAAAABqM/oCak7WYfWMkSKIfTPuHGETajCUX1vcKAwCLcBGAs/s320/apps.png" style="border: 2px solid blue;" width="320" /></a></div><br />Check out this nice collection of <a href="https://www.mathlearningcenter.org/resources/apps">free math apps</a> that work as <b>virtual manipulatives</b>/illustrative tools for most of your elementary math.<br /><br />You'll find fractions, number lines (including for fractions & negative numbers), geoboard, money pieces, place value apps, number frames/number rack (for number sense/mental math), and pattern shapes. ☺<br /><div><br /></div>Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-72332178616621815652018-06-06T12:25:00.001-04:002018-06-06T12:25:03.390-04:00Summer math resourcesIt's summer (here at the Northern hemisphere), and I've put together for you a LIST of wonderful SUMMER MATH resources:<br /><br /><a href="https://www.mathmammoth.com/lessons/summer_math.php">Summer math — 7 wonderful ideas and resource lists</a> <br /><br />Check it out! There are games, online games, math practice websites, puzzle/problem ideas, contests, and so on! <br /><br /><div style="margin: auto; max-width: 370px;"><a href="https://www.mathmammoth.com/lessons/summer_math.php"><img alt="Math Playground math games" src="https://www.mathmammoth.com/lessons/images/mathplayground-games-s.jpg" style="border: 8px solid #ec9aaa; width: 100%;" /></a></div><br />If you like <a href="https://www.mathmammoth.com/lessons/summer_math.php">the article</a>, let your friends know about it too! <img alt=":)" src="https://www.mathmammoth.com/newsletter/images/smiley-s.png" width="24" /> <br /><br />All the best,<br />MariaMath Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-1442455949699806142018-06-05T08:32:00.000-04:002018-06-05T08:32:03.751-04:00Math Mammoth giveawayHere's your chance to win Math Mammoth <a href="https://www.mathmammoth.com/complete-curriculum.php">Light Blue Series</a> curriculum!<br /><br />There will be FIVE winners. One will get the grand prize, a bundle of all seven grades, and FOUR winners will get ONE grade level (winner's choice).<br /><br /><br /><a class="e-widget no-button" href="https://gleam.io/uRNmf/win-math-mammoth-books" rel="nofollow">Win Math Mammoth books!</a><script async="true" src="https://js.gleam.io/e.js" type="text/javascript"></script> <br /><br />EVERYONE who enters will get ONE free ebook!<br /><br />The giveaway runs till midnight of Thursday, June 7. All prizes are digital downloads.<br /><br />Refer your friends (USING THE WIDGET) for extra entries!Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-37148532656001010932018-05-31T22:17:00.000-04:002018-05-31T22:17:05.855-04:00Thoughts on testingSometimes people have asked me about using TESTS with <a href="https://www.blogger.com/"><span id="goog_998970080"></span>Math Mammoth curriculum<span id="goog_998970081"></span></a> -- whether to use them or not.<br /><br />Well, basically it's up to you. I have provided chapter tests as a tool for those who want to use them, but I don't feel they are compulsory or "required" as such. It all comes down to whether you can use the tests to increase student learning.<br /><br />So often, tests are administered and grade given, and that's it; the test is forgotten. But there's some real "gold" -- some real value -- you can dig out from tests, and that "gold" is in the <b><a href="https://www.mathmammoth.com/lessons/value_of_mistakes.php">mistakes</a></b> your student makes. The test can point out or manifest the student's weaknesses.<br /><br />So what? you might wonder. Well, once you AND the STUDENT know about those weaknesses, you can work together to help the student MASTER the material. If there was a mistake in test item #5, then let's practice that topic some more!<br /><br />One "trick" to help you with this goal is to let students either <b>RETAKE the test </b>or <b>to get partial credit for correcting their mistakes in the test</b>. You can set it up in various ways, but the idea is to motivate them and to help them learn: they can work at it, and then get a better grade for that test. I've used this idea with my children for many years (they can always try to correct their mistakes in a test for partial credit). It also reduces test anxiety!<br /><br />Here's an article along the same lines - and I was glad to read it ☺:<br /><a href="https://medium.com/q-e-d/retaking-assessments-many-math-teachers-are-late-to-the-party-ae7a0b7e5428">Retaking assessments - many math teachers are late to the party</a><br /><br /><br /><div><br /></div>Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-12423433234860199992018-05-27T15:17:00.003-04:002018-05-27T15:17:59.450-04:00Placement into Math Mammoth - so importantI know it's time when many families are choosing curriculum for the next school year, and I also know how important it is for people to use <a href="https://www.mathmammoth.com/complete/placement_tests.php">PLACEMENT TESTS</a> prior to starting Math Mammoth.<br /><br />So here it is, finally (I do wish I had gotten this video done a bit sooner!) ... some basic principles about how to use Math Mammoth placement tests, in video format. (And, these tests also work as <a href="https://www.mathmammoth.com/complete/placement_tests.php">generic math assessment tests</a> -- you can use them even if you don't use Math Mammoth.)<br /><br /><div class="separator" style="clear: both; text-align: center;"><iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/VSlObapBXok/0.jpg" frameborder="0" height="315" src="https://www.youtube.com/embed/VSlObapBXok?feature=player_embedded" width="560"></iframe></div><br /><br />Brief summary:<br /><br />- Choose a test you THINK your student will pass.<br /><br />- 80% is a passing score; students scoring 50-79% probably just need to study the areas where they have gaps<br /><br />- Based on the results, you may need to administer the next lower or higher level test also... or in some cases, even three tests... to get a good grasp of what your student knows and doesn't know.<br /><br />- If a student does well overall, except in one particular area (such as geometry), consider administering parts of the lower level tests in that area.<br /><br />- Consider not testing students who suffer from math anxiety.<br /><br />The tests are available <a href="https://www.mathmammoth.com/complete/placement_tests.php">here</a>.<br /><br /><br />Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-56766968470359654412018-05-12T10:32:00.000-04:002018-05-12T10:32:11.257-04:00Math Mammoth May 2018 sale now live!<div class="separator" style="clear: both; text-align: center;"><a href="https://4.bp.blogspot.com/-LOVvgHlOJdc/Wvb5G1OOWOI/AAAAAAAABp4/WRQPX3da5vUuDQN976iYTkPhrH5GwGbNwCLcBGAs/s1600/Book_Covers_2ms.png" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" data-original-height="155" data-original-width="400" height="124" src="https://4.bp.blogspot.com/-LOVvgHlOJdc/Wvb5G1OOWOI/AAAAAAAABp4/WRQPX3da5vUuDQN976iYTkPhrH5GwGbNwCLcBGAs/s320/Book_Covers_2ms.png" width="320" /></a></div>Math Mammoth May sale is now live! 😅<br /><br />Get<b><span style="color: red;"> 25% off</span></b> of all of Math Mammoth & <a href="https://www.mathmammoth.com/worksheets/mirl/" target="_blank">Make It Real Learning</a> products sold at <a href="https://www.mathmammoth.com/books.php">MathMammoth.com </a>site. Use coupon code <b>MAY25 </b>at checkout.<br /><br />The offer is valid till June 1, 2018.<br /><br />Start browsing for example at<br /><br /><a href="https://www.mathmammoth.com/books.php">https://www.mathmammoth.com/books.php</a><br /><br />Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-57883426134371103362018-05-08T21:38:00.003-04:002018-05-08T21:38:47.500-04:00Spiral review workbook for Math Mammoth<a href="https://www.mathmammoth.com/skills_review_workbooks/grade_4.php" target="_blank">Math Mammoth Grade 4 Skills Review Workbook</a> is now available!<br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://4.bp.blogspot.com/-0mdJP3B8Exc/WvJQa4J8U_I/AAAAAAAABpo/EVVE63CriLoa4sUIoavjEtjM4TDlbJVMACLcBGAs/s1600/mm_Skills-Review-Workbook_Grade4-m.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="488" data-original-width="377" height="320" src="https://4.bp.blogspot.com/-0mdJP3B8Exc/WvJQa4J8U_I/AAAAAAAABpo/EVVE63CriLoa4sUIoavjEtjM4TDlbJVMACLcBGAs/s320/mm_Skills-Review-Workbook_Grade4-m.jpg" width="247" /></a></div><br />This workbook is supplemental, and provides additional practice for the topics in the main curriculum (<a href="https://www.mathmammoth.com/complete/grade_4.php" target="_blank">Math Mammoth grade 4</a>).<br /><br />It is currently available as a digital version, and later on as a printed book.<br /><br />The workbooks for other grades available thus far are <a href="https://www.mathmammoth.com/skills_review_workbooks/grade_1.php" target="_blank">grade 1</a>, <a href="https://www.mathmammoth.com/skills_review_workbooks/grade_2.php" target="_blank">grade 2</a>, and <a href="https://www.mathmammoth.com/skills_review_workbooks/grade_3.php" target="_blank">grade 3</a> (we're working on 5th!).Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-4826839929343963412018-04-30T08:13:00.001-04:002018-04-30T08:13:53.574-04:00Review math facts: once through the deck gameNeed a quick and easy way to have your child/student(s) review math facts?<br /><br />All you need is a deck of cards (for each student). ☺The student flips through the cards, adding the same number to the number shown on each card OR multiplying the number on the card by the same number (chosen beforehand).<br /><br />For example, a child might practice the multiplication table of 7, and therefore multiply each card by 7.<br /><br />Read more here: <a href="https://denisegaskins.com/2015/06/09/review-game-once-through-the-deck/" target="_blank">Review Game: Once Through the Deck</a><br /><br />Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-22569036641726916202018-04-15T09:50:00.000-04:002018-04-15T09:50:23.874-04:00Is it OK to let a child use a 100-chart for math facts?I recently got a question concerning a 3rd grader who has always had difficulty with number memorization and counts on her fingers. Mom is planning to start Math Mammoth grade 2 with her.<br /><br />Her question is, "<i>Is it okay to let her use a 100 chart while going through the program and completing the assignments? We will also continue to practice math facts with flash cards, etc</i>."<br /><br />I would say that using a 100-chart for a crutch is okay for children who have learning disabilities, and in situations where different methods to learn the math facts have been tried for years with no avail.<br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://www.mathmammoth.com/lessons/practical_tips_mental_math.php" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" data-original-height="1074" data-original-width="1600" height="214" src="https://1.bp.blogspot.com/-pNdDqCS2qAg/WtNYEIJh8_I/AAAAAAAABpU/BbYkVEErb1wSA2poMWOaPLCXvO9p6dXlgCLcBGAs/s320/mental%2Bmath%2Bpages.jpg" width="320" /></a></div>However, before resigning to that, I feel one should teach the child STRATEGIES and PATTERNS for addition and subtraction facts. <a href="https://www.mathmammoth.com/lessons/when_to_use_flashcards.php" target="_blank">Flash cards</a> are based on rote memorization, which is the hardest way to memorize anything. It's much easier on children once they can see math facts in a CONTEXT, and once they have learned various strategies for addition and subtraction (also called number sense).<br /><br />I do advocate memorization of math facts, but there's a balance. <a href="https://www.mathmammoth.com/lessons/practical_tips_mental_math.php" target="_blank">Number sense</a> is even MORE important.<br /><br />I'll refer you to these pages/videos for more.<br /><br /><a href="https://www.mathmammoth.com/add_subtract_2A.php#addition_subtraction_facts_strategies">Patterns and a context for addition & subtraction facts</a> (2 videos):<br /><br /><a href="https://www.mathmammoth.com/lessons/practical_tips_mental_math.php" target="_blank">A few strategies for addition & multiplication</a><br /><br />Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-14302852616535530492018-04-09T09:05:00.000-04:002018-04-09T09:05:03.976-04:00A tour around the Math Mammoth website<div class="separator" style="clear: both; text-align: center;"><a href="https://3.bp.blogspot.com/-viZtzewD29s/Wstkfk4xCGI/AAAAAAAABpE/HiYQFMtzpso4049ktxhTzQHZc3l8UDopwCLcBGAs/s1600/Book_Covers_2s.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="203" data-original-width="600" src="https://3.bp.blogspot.com/-viZtzewD29s/Wstkfk4xCGI/AAAAAAAABpE/HiYQFMtzpso4049ktxhTzQHZc3l8UDopwCLcBGAs/s1600/Book_Covers_2s.png" /></a></div><br />Do you perhaps have questions concerning the various Math Mammoth products? Feeling confused about the many options?<br /><br />I have completely revamped and updated the email "tour" around Math Mammoth website... <a href="https://www.mathmammoth.com/books.php#tour"><b>Math Mammoth Tour</b></a>, I call it.<br /><br />This email tour takes you "around" the various series of Math Mammoth books, plus a few other important topics, in seven different emails (TOURSTOPS) over the course of a week.<br /><br />It's completely free!<br /><br />Simply <a href="https://www.mathmammoth.com/books.php#tour">click here</a> to sign up!<br /><br /><br />Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-64872399980171530122018-04-04T10:47:00.002-04:002018-04-04T10:47:50.817-04:00The trouble with word problemsIt's time to talk about WORD PROBLEMS! <br /><br />Why is it that many children have such trouble with them? <br /><br /><div class="mobile" style="color: #a0a0a0; float: right; font-size: 12px; line-height: 120%; margin-left: 12px; max-width: 350px; text-align: center;"><img src="https://www.mathmammoth.com/lessons/images/5265647497_558df9b293_z.jpg" style="width: 100%;" /><br />Image by <a href="https://www.flickr.com/photos/radioflyer007/5265647497/" style="color: lightblue;" target="_blank">RadioFlyer007</a> (black border removed)<br />Licensed with <a href="https://creativecommons.org/licenses/by-nc-nd/2.0/" style="color: lightblue;" target="_blank">CC BY-NC-ND 2.0</a></div>I've written <a href="https://www.mathmammoth.com/lessons/word_problems.php" target="_blank">some thoughts</a> about this issue... I feel it is fairly <a href="https://www.mathmammoth.com/lessons/word_problems.php" target="_blank">comprehensive article</a>, and hopefully helpful! Let me know what you think. <br /><br />Here's the outline of the article:<br /><ul class="m"><li><a href="https://www.mathmammoth.com/lessons/word_problems.php#problem">The problem</a></li><li><a href="https://www.mathmammoth.com/lessons/word_problems.php#solution">The solution</a></li><li><a href="https://www.mathmammoth.com/lessons/word_problems.php#problems">Problems to ponder/solve</a></li><li><a href="https://www.mathmammoth.com/lessons/word_problems.php#misguide">Student's Misguide to Problem Solving</a></li><li><a href="https://www.mathmammoth.com/lessons/word_problems.php#resources">Resources</a></li></ul><br />And here's the beginning:<br /><br /><h2 id="problem">The problem</h2>Have you ever noticed this kind of "recipe" for math lessons in many math books?<br /><br /><div style="background-color: lightblue; border-radius: 15px; margin-left: 20px; padding: 10px; width: 230px;">LESSON X<br /><hr color="black" size="1" />Explanation and examples.<br />Numerical exercises.<br />A few word problems.</div><br />In other words, the word problems are usually in the END of the lesson, and just a few. But worse... if the lesson is about topic X, then the word problems are usually about the topic X too!<br /><br />Children might be learning about multi-digit multiplication, or subtraction, or dividing decimals. After the calculation exercises come some word problems, which oddly enough are <b>solved by using the exact operation just practiced</b>!<br /><br />Worse YET... typically the word problems in elementary grades only have TWO numbers in them. So, even if you didn't understand a word in the problem, you might be able to do it. (The <a href="https://www.mathmammoth.com/lessons/word_problems.php#misguide">misguide to problem solving</a> at the end of this article refers to this also.)<br /><br />Just try: the following made-up problem is in FINNISH... and let's say it is found within a long division lesson. I assume now that you do NOT know Finnish — but can you solve it?<br /><br /><div style="background-color: lightblue; border-radius: 15px; margin-left: 20px; padding: 10px; width: 270px;"><i>Kaupan hyllyillä on 873 lakanaa, 9:ää eri väriä. Joka väriä on saman verran. Kuinka monta lakanaa on kussakin värissä?</i></div><br /><a href="https://www.mathmammoth.com/lessons/word_problems.php#finnish" target="_blank">Continue reading...</a>Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-44769088154955859832018-04-03T12:47:00.003-04:002018-04-03T12:47:55.387-04:00The origin of math symbolsHere's a delightfully animated, short video about where math symbols come from... in case or your children or you ever wondered. :) <br /><br /><div class="separator" style="clear: both; text-align: center;"><iframe allow="autoplay; encrypted-media" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/eVm063xmnow" width="560"></iframe></div><br /><br /><br />Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-49178442722135444832018-04-02T14:16:00.002-04:002018-04-02T14:16:27.768-04:00Bad attitude towards mathSomeone recently asked me advice concerning a 4th grade daughter who has a not good (negative) attitude towards math, along with her struggling with math. This mother said she always focused on reading and comprehension (which the daughter does well), but she didn't focus enough on math. This girl has convinced herself that she doesn't like math and that she is not good at math. Mom desperately wants to change her way of thinking!<br /><br />The girl had done <a href="https://www.mathmammoth.com/complete/placement_tests.php">placement tests</a> or the end-of-year tests for grades 1, 2, and 3, and those showed some inconsistencies... like she did much better on the money section for 2nd grade than for 1st. Some really EASY questions (like 6 - 2 and other subtraction facts) from 1st grade were answered wrong. The 2nd grade test was about 60%, and 3rd grade, she didn't try most questions.<br /><br />I asked her to REDO 4 problems from the 1st grade EoY test... and then she got them almost all correct! Which meant, she passed the 1st grade test just fine.<br /><br />It made me wonder what is going on... I am suspecting the girl purposefully didn't put forth the effort to try to get the problems correct, so that the test results don't fully show what all she actually knows.<br /><br />Changing a student's attitude towards math is definitely possible, with the right kind of instruction and experiences. But since there exists a <a href="https://www.youcubed.org/online-student-course/">FREE online course tailored to CHANGE students' attitudes towards math</a>, that's what I suggested to this mother that her daughter take:<br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://www.youcubed.org/online-student-course/" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="288" data-original-width="480" height="192" src="https://4.bp.blogspot.com/-AAiQZl0T0B8/WsJzOnPE2xI/AAAAAAAABos/3oYe_KB3EIcNp1e9ttnWMHf5oZoB0d_zgCLcBGAs/s320/learnmath-students_free-480x288.jpg" width="320" /></a></div><br />Main concepts to learn in this course:<br /><ul><li>Knocking Down the Myths About Math</li><li>Math and Mindset</li><li>Mistakes and Speed</li><li>Number Flexibility, Mathematical Reasoning, and Connections</li><li>Number Patterns and Representations</li><li>Math in Life, Nature and Work</li></ul><br />Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-81194595967550927472018-03-29T16:33:00.001-04:002018-03-29T16:33:27.234-04:00Women of mathematics (blog carnival)<div class="separator" style="clear: both; text-align: center;"><a href="https://denisegaskins.com/2018/03/26/playful-math-carnival-115/" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="432" data-original-width="1296" height="132" src="https://1.bp.blogspot.com/-QTuPWGQQGyw/Wr1NdqyXWoI/AAAAAAAABoc/7dZOnS0VL9Y10YNU8CezyRBJmhGN_EBfQCLcBGAs/s400/math-women.jpg" width="400" /></a></div><br />Denise has put together a beautiful <a href="https://denisegaskins.com/2018/03/26/playful-math-carnival-115/">Math Teachers at Play blog carnival</a>... illustrated with women mathematicians and quotes from them. Celebrating the women of mathematics! (Of course, you'll also find links to all kinds of neat math resources from elementary through high school, and some puzzles also.) Enjoy!<br /><br />Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-5634606447819687102018-03-24T15:57:00.000-04:002018-03-24T15:57:09.521-04:00Algebra 1 videos and online courses<div class="separator" style="clear: both; text-align: center;"><a href="https://www.mathmammoth.com/complete/algebra_1.php" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" data-original-height="230" data-original-width="400" height="184" src="https://4.bp.blogspot.com/-bKPjU7hw1mg/WratFfr8NcI/AAAAAAAABoM/XB2Syd7iyHoHfpW-BkeKACo4p7BbgcunACLcBGAs/s320/learn-2300141_1280-s.jpg" width="320" /></a></div>I just updated my article on <a href="https://www.mathmammoth.com/complete/algebra_1.php">resources and courses for algebra 1</a>... you will find algebra textbooks, video websites, and online courses -- and several of them are completely free. :)<br /><br />In that sense, it's wonderful the times we're living in! No one with Internet access is left without the opportunity to learn this subject.<br /><br /><br /><div><br /></div>Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-54614309153330391582018-02-28T09:46:00.003-04:002018-02-28T09:46:42.607-04:00Multiplication cards with dot arraysSome of you might like <a href="http://researchparent.com/interactive-multiplication-cards/">these multiplication flash cards</a> (free printable) with DOT arrays.<br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="http://researchparent.com/interactive-multiplication-cards/" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Multiplication flash cards with dots" border="1" data-original-height="560" data-original-width="398" height="320" src="https://1.bp.blogspot.com/-0Da8MXqlBfI/WpayXzNIYBI/AAAAAAAABn4/N3IRB1TIi64ZmBFxxMoSBIYrtdxZnQPCACLcBGAs/s320/Interactive-Multiplication-Cards.jpg" title="Multiplication flash cards with dots" width="227" /></a></div><br />I like the idea! They could be used to teach beginning multiplication with the answers intact, and later on, cover the answers for memorization/learning practice, but either way, the dots remind the student of the CONCEPT of multiplication.Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-91219671417611377942018-02-27T16:56:00.004-04:002018-02-27T16:56:54.988-04:00Blue series books - in what order?Many people use Math Mammoth <a href="https://www.mathmammoth.com/blue-series.php">BLUE Series</a> to help their children catch up if they are seriously behind. Some others use the Blue series as their main math curriculum.<br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://1.bp.blogspot.com/-GMdQAnx6yCc/WpXD_DuMPKI/AAAAAAAABno/MyGb1eLZbG0MLOeeaQrd5YJgnpHaK_yFwCLcBGAs/s1600/blue-series-books-s.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="211" data-original-width="500" height="135" src="https://1.bp.blogspot.com/-GMdQAnx6yCc/WpXD_DuMPKI/AAAAAAAABno/MyGb1eLZbG0MLOeeaQrd5YJgnpHaK_yFwCLcBGAs/s320/blue-series-books-s.png" width="320" /></a></div><br />The Blue series consists of TOPICAL books... so how does one use them <b>in sequence</b>? In what ORDER would they be used? The choice is yours, and lots of flexibility... but to help you get some idea of what goes where in regards to grade levels, this chart can help:<br /><br /><a href="https://www.mathmammoth.com/study_order.php">Study order for Math Mammoth Blue Series books</a><br /><br />Keep in mind, the above link presents just a broad outline. The order of studying these books is not set in stone. :)<br /><br /><br />Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-13287549344323756632018-02-19T11:59:00.004-04:002018-02-19T11:59:58.090-04:00Puzzle - fractional parts and fair shareHere are some <a href="https://nrich.maths.org/708">nice puzzles</a> for middle school students.<br /><br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://nrich.maths.org/708" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="" border="0" data-original-height="347" data-original-width="1156" height="120" src="https://4.bp.blogspot.com/-VirgL24CABA/Wor0Hdu9AJI/AAAAAAAABnY/rVarG1kqvUUb2ZI6TVCX2XcHIIDtWEhzgCLcBGAs/s400/Fair%2Bshares.png" title="Fair share puzzle" width="400" /></a></div><br />On the surface, students get practice with finding a fractional part of a quantity (such as 1/6 of 24) but the full idea of the puzzles is quite fascinating:<br /><div><br /></div><div><a href="https://nrich.maths.org/708">Fair Shares puzzles</a></div>Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-36973433694465571472018-01-28T23:17:00.004-04:002018-01-28T23:17:52.484-04:00The different series of Math Mammoth booksSome people feel overwhelmed by the information and all the books offered at Math Mammoth website... and I can understand that.<br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://www.mathmammoth.com/books.php" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="485" data-original-width="1490" height="104" src="https://1.bp.blogspot.com/-0_nuRqpRTCQ/Wm6RviY601I/AAAAAAAABm4/5vACywdIKhwVycCdqzK-9PBJAvYrfbQEwCLcBGAs/s320/feature-comparison-chart.png" width="320" /></a></div><br />So, I recently revised <a href="https://www.mathmammoth.com/books.php">the page concerning which books to choose</a> to explain (hopefully) better the different series of books, and to help people choose what they need. :)<br /><br /><br /><div><br /></div>Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-26292699072702316952018-01-25T13:21:00.001-04:002018-01-25T13:21:02.192-04:00Math Mammoth printed books saleGet Math Mammoth printed books & CDs at 20% off <a href="http://www.rainbowresource.com/prodlist.php?subject=Mathematics/10&category=Math+Mammoth/9820">at Rainbow Resource Center</a>!<br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://3.bp.blogspot.com/-nkiH56lZ_t4/WmoR6lP-iQI/AAAAAAAABmo/RuZg7e_ARW0olmAk6D1FkqkyX03hNyewACLcBGAs/s1600/2018_MathMammothSale-1516656435.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="416" data-original-width="742" height="179" src="https://3.bp.blogspot.com/-nkiH56lZ_t4/WmoR6lP-iQI/AAAAAAAABmo/RuZg7e_ARW0olmAk6D1FkqkyX03hNyewACLcBGAs/s320/2018_MathMammothSale-1516656435.jpg" width="320" /></a></div><br />This sale runs till January 29, 2018.Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-44239523273764262022018-01-25T13:16:00.002-04:002018-01-25T13:16:47.648-04:00Discontented with division?<div class="separator" style="clear: both; text-align: center;"><a href="https://opinionator.blogs.nytimes.com/2010/02/21/division-and-its-discontents/" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" data-original-height="826" data-original-width="427" height="200" src="https://2.bp.blogspot.com/-GVXuc8ymvlc/WmoPLAlCUnI/AAAAAAAABmc/-53ZmqIIJ9c0O-PqOqs0dN68NTIgFqBYwCLcBGAs/s200/22strogatz-custom1.jpg" width="103" /></a></div>Enjoy this column by Steven Strogatz titled <a href="https://opinionator.blogs.nytimes.com/2010/02/21/division-and-its-discontents/">Division and Its Discontents</a>.<br /><br /><b>Division</b> "is the place where many students hit the mathematical wall", he says. Division is mathematically the operation that gives us FRACTIONS... because not everything divides evenly. If you try to divide 9 by 4, you will end up with a fractional part in your final answer.<br /><br />Strogatz takes us through a few short stories, and in the end shows us some astonishing facts concerning decimals, which make it seem that everything is turning topsy-turvy! <a href="https://opinionator.blogs.nytimes.com/2010/02/21/division-and-its-discontents/">Enjoyable piece</a> for adults and your middle and high school students alike. :)<br /><br />If you'd like more, this piece is actually a part of a series of columns on <a href="http://topics.nytimes.com/top/opinion/series/steven_strogatz_on_the_elements_of_math/index.html">the Elements of Math</a>:<br /><br /><br />Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-62104519424723708322018-01-16T10:03:00.000-04:002018-01-16T10:03:36.847-04:00Get Math Mammoth at 25% off!<div class="separator" style="clear: both; text-align: center;"><a href="https://www.mathmammoth.com/books.php" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="500" data-original-width="500" height="320" src="https://3.bp.blogspot.com/-pqNtD8alrgQ/Wl4DbgZN-TI/AAAAAAAABmM/ZcSRWaTYKQ4jX4BYuFujTCooWIQSvg7wACEwYBhgL/s320/Blue-Golden-Green-LightBlue-500x500.jpg" width="320" /></a></div><br />Get <a href="https://www.mathmammoth.com/books.php">Math Mammoth</a> AND <a href="https://www.mathmammoth.com/worksheets/mirl/">Make It Real Learning</a> downloads & CDs at 25% off at MathMammoth.com.<br /><br />Simply use the "Add to cart" buttons at MathMammoth.com website, and then use the coupon code <b>MMJAN18</b>.<br /><br />This promotion is valid till January 31, 2018.Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-76214246201174194902018-01-08T20:59:00.001-04:002018-01-08T20:59:09.574-04:00Math Mammoth Blue Series - the basicsThis video gives you an overview of Math Mammoth Blue series books:<br /><br /><div align="center"><iframe allow="encrypted-media" allowfullscreen="" frameborder="0" gesture="media" height="315" src="https://www.youtube.com/embed/A_ESbSUqyak?rel=0" width="560"></iframe></div><br />In case you don't know, the <a href="https://www.mathmammoth.com/blue-series.php">Blue Series books</a>, being topical, are perfect for filling in gaps, to provide additional instruction & review on a certain math topic, or to help a student who is seriously behind to catch up.<br /><br />There are nearly 50 different books, which cover all math topics for grades 1-7 -- from addition, subtraction, multiplication, and division to fractions, decimals, percents, geometry, equations, statistics, and so on.<br /><br />Learn more at <a href="https://www.mathmammoth.com/blue-series.php">https://www.mathmammoth.com/blue-series.php</a> !Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-91559126152674629742018-01-05T10:01:00.000-04:002018-01-05T19:14:33.557-04:00A new prime has been found (2018)The GIMPS project has discovered the largest prime to date... it's a Mersenne prime, which means it is of the form 2^<i>n</i> − 1 for some whole number <i>n.</i> ☺<br /><br />In this case, it is 2^77,232,917 − 1. This number has 23,249,425 digits, and it's nearly one million digits longer than the previous Mersenne prime found.<br /><br /><a href="https://www.sciencealert.com/record-breaking-mersenne-prime-number-23-million-digits-m77232917">Read about the discovery here</a>.<br /><br />The work to find these really large primes is done by running specialized software on many regular computers -- in fact, anyone with a modern computer <a href="https://www.mersenne.org/gettingstarted/">can help</a> in this project!Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0tag:blogger.com,1999:blog-18322056.post-52070937307958364662018-01-01T10:07:00.002-04:002018-01-01T10:07:43.512-04:002018 Mathematics game<div class="separator" style="clear: both; text-align: center;"><a href="https://4.bp.blogspot.com/-31T5pCOsYUw/WkpAmYQVV5I/AAAAAAAABl4/Hpef4wtYhVY-QX5JiNtAF3EpB1N021cjQCLcBGAs/s1600/calculator-3051724_640.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" data-original-height="426" data-original-width="640" height="213" src="https://4.bp.blogspot.com/-31T5pCOsYUw/WkpAmYQVV5I/AAAAAAAABl4/Hpef4wtYhVY-QX5JiNtAF3EpB1N021cjQCLcBGAs/s320/calculator-3051724_640.jpg" width="320" /></a></div>Welcome to 2018! Here's a FUN mathematical activity you (or your kids) can be entertained by on this first day of the year -- and beyond... some might get involved in it enough to spend a few days on it 😁<br /><br />It's the <a href="https://denisegaskins.com/2018/01/01/2018-mathematics-game-join-the-fun/">2018 Mathematics game</a>! This is a yearly tradition where we try to form all the whole numbers from 1 through 100 using ONLY the digits in the particular year, in this case, 2, 0, 1, and 8.<br /><br />Head on to <a href="https://denisegaskins.com/2018/01/01/2018-mathematics-game-join-the-fun/">https://denisegaskins.com/2018/01/01/2018-mathematics-game-join-the-fun/</a> to read the complete rules.<br /><div><br /></div>Math Mammothhttps://plus.google.com/105961364219775463476noreply@blogger.com0