Math Mammoth Integers is here!

Math Mammoth Integers worktext covers all important integer (signed numbers) topics for middle school (grades 5-8), with instructions written directly to the student. Thus, it requires very little teacher or parent involvement.

Check out a few free sample worksheets or lessons:

http://www.mathmammoth.com/preview/Integers_Adding_Integers1_Counters.pdf

http://www.mathmammoth.com/preview/Integers_Dividing_Integers.pdf

And see the contents.

More information and purchase info is here.

Special offer for printed Math Mammoth books at Lulu (coupon code)

Lulu.com has a special offer right now that you can use to purchase the printed copies of MathMammoth books.

Enter coupon code HOLIDAYVIP305 at checkout and receive $20 off your next order of $20 or more.

You can browse the printed versions of Math Mammoth books here.

This offer is only valid in US dollars, and cannot be applied to previous orders. You can only use this code once per account, and you can't use this coupon in combination with other coupon codes. The offer expires on November 30, 2010 at 11:59 PM. 

Offer posted at http://www.lulu.com/static/102610_HOLIDAYVIP305wv.html

The quickest path around the baseball bases

Some of you (sports fans?) might find this interesting: mathematicians have calculated the quickest path around the baseball diamond, through the four bases. And it's not in the shape that you'd think.

Please read the news article here: Winning the World Series with math
A nearly circular path could be the fastest way to home plate