[**Hat tip:** JT at Between Two Worlds. If video isn’t displaying properly, look here.]

NOTE: This visualization applies to almost any “budget cuts” you hear about from any government administration, no matter which political party is in charge…

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Month: April 2009

## Obama Budget Cuts Visualization

## Kids’ Project: More Math Calendars?

## Kitten Poses a Puzzle

## Carnival of Mathematics Resurrected

## Free: Calculus Student’s Best Friend

## Puzzle: Factoring Trinomials

Denise Gaskins' Let's Play Math

Helping families to learn and enjoy math together.

[**Hat tip:** JT at Between Two Worlds. If video isn’t displaying properly, look here.]

NOTE: This visualization applies to almost any “budget cuts” you hear about from any government administration, no matter which political party is in charge…

*[Photo by Kuzeytac.]*

Several people enjoyed the April calendar and asked if there would be a May version. Unfortunately, my homeschool co-op classes are out until next fall, so I don’t have enough kids to make up problems for me. But if your children would like to send in some puzzles, I will be glad to put another calendar together. If we get enough participation, we could have calendars every month for the rest of the year!

The Carnival of Mathematics is back:

There is a nice balance of articles. My favorite comes from a new blog (just started this month!): The Numbers Go Social Networking.

A winner has been announced and a solution posted for last week’s Monday Math Madness:

Watch for the new puzzle coming next Monday at Wild About Math!

And don’t forget: The next installment of ** Math Teachers at Play** opens next Friday, May 1, at I Want to Teach Forever. To contribute, use this handy submission form.

Want to help your kids learn math? Claim your free 24-page problem-solving booklet, and sign up to hear about new books, revisions, and sales or other promotions.

Considering how many fools can calculate, it is surprising that it should be thought either a difficult or a tedious task for any other fool to learn how to master the same tricks… Being myself a remarkably stupid fellow, I have had to unteach myself the difficulties, and now beg to present to my fellow fools the parts that are not hard. Master these thoroughly, and the rest will follow. What one fool can do, another can.

For years, I have recommended Calculus Made Easy as summer reading (and future reference) for high school or college students headed into a calculus course — and for the parents of those students, who may have studied calculus in ages past and now need to dredge out the dust bunnies of memory so they can help with homework.

The original book (second edition) is now out of copyright and available for free online:

- Calculus Made Easy [pdf, 11.4 MB]

[Hat tip to Sam and Michael for finding the Scribd version, which set me off searching for a clearer copy.]

Want to help your kids learn math? Claim your free 24-page problem-solving booklet, and sign up to hear about new books, revisions, and sales or other promotions.

My high school class ended the year with a review of multiplying and factoring simple polynomials. We played this matching game, and then I gave them a puzzle worksheet. I liked this idea, but I didn’t like the decoded answer. In my opinion, puzzles should give the student a “reward” for solving them — maybe a joke or riddle or something — but that answer seemed almost like nagging.

So I changed things around to make my own version: