October 04, 2015

CUTE 1st grade fractions exercise - different colors indeed!

This is what my son did on one of his Math Mammoth pages when studying FRACTIONS in 1st grade math... Look closely at the instruction for question 1d... color both halves, but different colors! It was so cute. :)

This worksheet page is found in my book Introduction to Fractions and also in Math Mammoth Grade 1 Complete Curriculum.

September 30, 2015

Addition facts within 10 - 1st grade math

Check out my videos on this page at my site! They present an organized and logical method for children to learn their addition facts within 10 using PATTERNS that arise from the number system itself.

Children LOVE patterns, and patterns are the essence of math — mathematics has even been defined as the "science of patterns".

In this method, we study sums with 5, sums with 6, sums with 7, and so on until sums with 10 (also called "number bonds"). These sums or number bonds are not studied in random order, but grouped by the SUM, or the "answer". 

September 11, 2015

Awesome math dictionary/glossary

Here's an awesome math dictionary or glossary that your children will LOVE browsing :^)

Math Dictionary for Kids
(original, for computers only)

Math Dictionary - Quick Reference
(also for tablets)


September 07, 2015

Lessons on integer basics (pre-algebra/7th grade math)

Here's a collection of 7 video lessons of mine on the basics of integer arithmetic, meant for pre-algebra or 7th grade math:

Click the image to access a Youtube playlist for those 7 videos.

It contains the following individual video lessons, which you can also access individually (on my site):

September 03, 2015

New book in the Blue Series: Data and Graphs

Math Mammoth Data and Graphs math book cover
A new kid on the block!

Math Mammoth Data and Graphs is a worktext that covers common statistical graphs and some related topics for grades 2-5.

It is a worktext, which means it includes both the "text" (instruction) and the "work" (exercises and problems).

The book starts with the easiest topics: reading and making bar graphs, pictograms, histograms, and various kinds of line graphs.  Toward the end of the book, we also study average (also called the mean) and mode, and how these two concepts relate to line and bar graphs.

Prices & ordering

PDF download $4.20

Buy at Kagi

August 10, 2015

Math Mammoth August Sale - get 25% off of ALL downloads and CDs!

Get 25% off of all Math Mammoth & Make It Real Learning products sold at Kagi (downloads and CDs). smile

The offer is valid till August 24, 2015.

Use coupon code AUGUSTSALE at Kagi store, on the 2nd page of the order process. You will find links to Kagi's order pages at MathMammoth.com on the various product pages.

Or, if you are ready to order, you can use these direct links to the order pages:



August 04, 2015

Math Mammoth printed books sale!

Rainbow Resource is running a 20% off sale on Math Mammoth printed books & CDs! The sale lasts till August 22.

Check it out here!

And... did you know? Nowadays, they offer both full-color versions and black-and white versions of my books. :)

August 03, 2015

Giveaway at Hip Homeschool Moms

The Hip Homeschool Moms is hosting a week of giveaways for a bunch of products, including Math Mammoth. smile The giveaway for Math Mammoth products (plus other products) runs from Monday, August 3, till Thursday, August 6, 2015.

I'm giving away:

  • 1 of Math Mammoth All Inclusive Bundle CD
  • 2 of Math Mammoth Light Blue Series Grades 1-7 CD
  • 5 of one grade level of Math Mammoth Complete Curriculum (each winner chooses the grade level they want)

Just click this link to join in the fun!

Also, if you have a little bit of time to spare, I'd like to ask you to write a review of Math Mammoth for their product reviews section here:


Talk to you soon — as my traditional August sale is just around the corner (starting on the 10th)!


July 08, 2015

Math video for kids: Adding three numbers

Let your little ones have fun learning how to add three numbers with this new video of mine, which also features Mathy the Mammoth as my mascot. :)

The video is intended for first grade.

June 25, 2015

Math Mammoth Grade 7 (pre-algebra)

cover for Math Mammoth Grade 7-B Complete Worktext

Math Mammoth Grade 7 and 7-B are available now - as downloads! Printed books and a CD version will follow soon.

 Check www.mathmammoth.com/complete/grade_7.php for description and samples.