Lesson Plan
Curated OER

Four Color Theorem

For Teachers 11th - 12th
Students identify and interpret how the Free Response questions are graded on an AP Exam. They also discuss coloring the included map, placing several examples on the board to determine the number of colors necessary to color each....
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The Franklin Institute

A Penny Flipped Is Science Learned

For Students 9th - 10th Standards
What is the probability that a penny will land on heads when flipped? Test this on Ben Franklin's birthday and find out!