Tag: irrational numbers

Wheel of Theodorus

Bring a little art into your math class as you begin to use the Pythagorean theorem and your students first meet irrational numbers.

Beautiful mathematics

Color, measure, design, Sierpinski, spirals, Pythagorean triples, hexadecimal color codes, fractals, string design, modular math, Pascal’s triangle, Fibonacci, polyhedra, build an eclipse … Enjoy!

12/16/20 – Pythagorean Triples

This would be a good date to play with Pythagorean Triples. Pythagorean Triples and coloring – Pythagorean triples are not only handy for students to recognize but produce some interesting and lovely patterns.  We’ve combined a little coloring with our Pythagorean…

Spiraling squares – compass and straight edge

Can you see the many spirals in this design? Students calculate the size of each increasing round of squares and consider what sort of spirals these must be. The activity: SpiralingSquares.pdf Working with a little mathematical art is a great…

What me? Irrational?

We’ve found that some students believe that the approximation that their calculators show for irrational numbers is exact.  Here’s an activity that you can advertise as long multiplication review. After they study our calculations have a discussion just to clarify…