Account: avigail

In this game, you are given the weight for one of three objects.

An Etoys model of a spinning Earth orbiting the sun while a spinning moon orbits the Earth. Use it model to discuss lunar months, solar years and models. How is it different from the real Moon and Earth?

Activity book that is a guided inquiry into the question: Why "gear" does not work when using wheels heading in car's heading.

Activity book that leads to the question: Why "gear" does not work when using wheels heading in car's heading.

Elipses are flying around. Player stops when desired number of elipses are in the purple square.

Find bouncing angle of ball when you know the ball's heading and bumper's heading; 1) by rotating the system; 2) using algebraic linear combination.

Simulating bouncing of a ball from a bumper.

A game: Players take turns adding ready made pie-shaped circle fractions to a given circle. The last player to put a tile before overlapping occurs, wins.

Geometric Loci: Relations between points A and B and the rest of the plane defined by the distances of points to A and B. Scanning gives a picture of the group of points in the relation. Examples: Middsection perpendicullar; Hiperbolas; Ellipses.