squareCircleZ

In this Newsletter:

1. Google International Science Fair
2. "e" day next week (2/7)
3. The Versa Ruler
4. Answerify – a new forum
5. AutoGraph software review
6. Friday math movies
7. Final thought – make it creative

This video shows how we can improve our lives using sensing data.

Autograph is a well-designed 2-D and 3-D plotting application for education. Here’s my review.

Vi Hart presents an enthusiastic rendering of spirals and Fibonacci, as relating to plants.

In this Newsletter:

1. Biorhythm graphs
2. Interactive parabola graphs
3. Space scientist turns math teacher
4. Latest IntMath Poll – individual study
5. Friday Math Movies
6. Final thought – Sharpen your math tools

Biorhythm graphs are an interesting – but unscientific – application of sine curves.

Dave tells us about his interesting working career that often involved math, and how he recently became a math teacher.

Where did the missing square go? We can use slopes of lines to solve this puzzle.

Is this a viable answer to the many problems experienced by mainstream schools?