Curated OER
Angles, Parallel Lines, and Polygons
Students examine how to investigate polygons using an instrument of their own construction. They should be able to prove the general formula for the number of degrees in any polygon (including a triangle). Finally they investigate an...
Curated OER
Worksheet 13
In this math activity, students write down the equation of a plane. Then they create the equation of a line. They also define the lines that are perpendicular.