## Posts

Showing posts from June, 2014

### Worksheets for simplifying expressions

I've made a worksheet generator for simplifying expressions, meant for pre-algebra and algebra 1.

The expressions include ones where you need to combine like terms (such as 2t − 9 − 6t + 2), use the distributive property (such as 9 − 2(x + 7)), and to multiply and divide monomials, such as 2x2 · (−5x3) and −4x2 · y2 / 3x5.

To customize the worksheets, you can control the number of problems, difficulty level, range of numbers used as coefficients and constants, the usage of decimals, the amount of workspace, a border around the problems, and additional instructions.

### Math Mammoth Photo Contest

Take a photo of your child or student(s) doing Math Mammoth materials, and you'll have a chance to win Math Mammoth books!

Here are my girls studying from Math Mammoth books:

Send your photo and description to my email address by June 30, July 10, 2014.

If you don't yet know my email address, first write me through the contact form, and I'll respond to you and then you'll get my email address.

If you don't yet own any of my books, you can head here:

Math Mammoth freebies ->

... or use some of the free samples from the website (the samples are always listed under each product's cover image, on the left hand side).

RulesYour photo should show someone working with Math Mammoth materials.You give me permission to publish your photo online (Math …

### Brain Injury Turns Man Into Math Genius

I found this very interesting... a brain injury 'unlocked' a part of Jason Padgett's brain, and now the man sees geometric shapes and angles everywhere!

http://www.livescience.com/45349-brain-injury-turns-man-into-math-genius.html

See also a gallery of his drawings. The one below is a circle (or two) created by drawing many triangles. He says, "I drew circles out of 180 triangles, then 360, then 720." With a finer pencil, he could draw even more. "Through this process, I came to understand how pi is calculated by measuring the area of a circle."

There are many people who are anxiously awaiting Math Mammoth Grade 7. I hope to have part A available as a download in August. This will be a pre-algebra course.

I thought some might enjoy seeing a little "peek" into the new curriculum so I prepared the lesson Addition and Subtraction Equations as a free PDF download for you:

### Another math game website for summer

I know all kids love games, so I have ANOTHER math game website for you to enjoy during the summer!

Math Nook

This one is concentrating on grades 1-6. Everything is listed by topic (counting, addition, measurement, place value, factors, decimals, division, fractions, estimation, and so on). Each game also lists the corresponding CCS standard, if any.