Worksheet
Curated OER

Optical Illusions with Geometry

For Students 4th - 6th
For this optical illusions worksheet, students try to draw the illusion asked and discuss more illusions with their classmates. Students answer 4 problems.
Worksheet
Curated OER

Optical Illusions

For Students 9th - 12th
In this algebra worksheet, high schoolers rewrite word problems using algebra symbols. There is an answer key with this problem.
Lesson Plan
Curated OER

Symmetry In Nature

For Teachers 6th - 12th
Students investigate the symmetry that is found in nature. They view shapes and patterns in nature while looking at images. Students look for tessellations while obtaining photographs with a digital camera. The information is used for...