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Cultivating original thinking

An interesting thing happened today. A girl I was working with, who’s had virtually no schooling in geometry, made a brilliant “leap” in a geometry problem. This student was starting a unit on fractions, and the curriculum was describing a standard way of conceptualizing fractions. The book was showing that if you divide a given […]

New GEOMETRY Product on Horizon

New Geometry product on horizon from Singing Turtle Press. Math author Josh Rappaport is coming out with an eBook on geometry. Read this post to find out more!

Summertime Geometry Scavenger Hunt

Math is everywhere, when you start looking for it. In this post you learn about a fun summertime geometry project. Have your children look at highway signs and try to find as many geometric objects as they can. They can even come up with geometry problems based on the signs, too.

James Bond Math Challenge

Take this informal quiz. Watch this clip from a James Bond movie, and see what math themes and patterns you can find in the art and visuals. Then drop me a comment. I’ll share all comments that make reasonable statements.

Invisible Misunderstandings: Square roots of 2 and 3

There are large chunks of mathematical knowledge that we often assume students have down. In fact, they often lack that knowledge. A good example is this: most students I work with have virtually no sense as to the value of the square root of 2 or the square root of 3. This post offers a […]

Answer, Fun Math Problem

Here is the answer to an interesting problem: what provides a better fit, a square peg in a circular hole, or a circular peg in a square hole? We can use simple geometry to figure it out!

FUN MATH PROBLEM — Circling the Square & Vice-Versa

Circle the Square or square the circle. Either way, it’s a fun math problem. Feel free to try it, share it, use it however you wish.

April Problem of the Month

APRIL’S PROBLEM: What provides a better fit? A square peg in a round hole, or a round peg in a square hole? How well does each peg fit in its respective hole? To provide a complete answer, express the “fit” of each plug as a percentage. To find this percentage, divide the area of the […]