Free ebook "All Children Can Be Great Listeners"
... this free e-book is meant for preschool-kindergarten age kids, and you can download it here . It's not my book, but courtesy of Renee from SchoolSparks.com
Posts
Celebrating e-day
Tomorrow 2/7 is e -day. e or Euler's number is a number that is approximately 2.718281828, so that is why someone chose 2/7 as an e-day. But e is an irrational number, so its decimal expansion is never-ending and never-repeating. Why is this number e so important that people have even named a day after it? If you've studied calculus, you already know at least part of the story. But even if you haven't, I'll try to unravel at least the most basic feature of e . Consider the exponential function e x . It is graphed below. It has one remarkable property: when you draw a tangent to it at any particular point, the SLOPE of that tangent is always the value of the function e x at that point. See below two examples: A tangent at 0.69 with slope 2 A tangent at -0.69 with slope 0.5 This feature is usually expressed this way: e x is its own derivative, or the derivative of e x is e x . There exists NO other function with that property! Here's also an interesting explanat...
Free e-books from Sylvan Dell
Sylvan Dell publishing is allowing the public to view for FREE their new line of ebooks. These ebooks are animal-themed picture storybooks for children with beautiful illustrations and text. They can be used to learn language or science. The neat thing is, they are bilingual (English/Spanish). You can switch the language while you're reading one page and it'll stay on that page. Plus you can have the book read to you (audio) in either English or Spanish. Here is the link: http://www.sylvandellpublishing.com/ebooktrials.php?e=MSBL9J Click, and then click the button that says "Validate access code".
Multiplication, division, laser TVs, logs.
Well today I hopefully have something for everybody. The site DoubleDivision.org shows you an alternative long division algorithm, which takes the guessing away from estimating how many times the divisor goes into what needs divided. Also called 1-2-4-8 division. This is a pretty cool way of dividing! The interactive tool shows you the steps right there for any problem you might come up with. At MathLogarithms.com you can download an ebook by Dan Umbarger explaining logarithm how's, why's, and wherefore's in all detail for students. Great resource for precalculus students. You might also enjoy an alternative way to multiply called lattice multiplication . I did! It seems pretty simple. And lastly, if the math topics didn't interest you, how about my hubby's newest website called Laser-TVs.net ... It's about a totally new way of making TVs using lasers.