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Page This is a draggable line on an xy-coordinate system that
dynamically updates the equation of the line. Here is an idea of
what the sketch looks like: The midpoint quadrilateral,
constructed by connecting the midpoints of any quadrilateral, is
always a parallelogram. Under what conditions is it a rhombus?
Use this sketch to investigate. Here's a picture of the sketch:
This is a sketch of a tessellation made in the pattern of a
Navajo rug. This sketch was created recursively, replicating a
segment and an angle thus creating various polygons when the
angle is changed. Parallelogram Area vs. Perimeter This is a
figure which is minimally constrained to be a parallelogram with
constant area and perimeter. Here's what the sketch looks like:
Here is an animation of a pendulum. You can vary its length and
amplitude. Take some data. What is the dependence of the period
on these two parameters. Does it behave like a physical
pendulum? This is a dynamic