Lesson Plan
Curated OER

Investigating Scale Factors with the Geometer's Sketchpad

For Teachers 7th - 12th
Students use Geometer's Sketchpad to examine the scale factor when in is applied to the length of a figure's sides. They look at how the scale factor affects the side lengths, perimeter, and area of the figure that result. They work with...
Lesson Plan
Curated OER

Cracks on the Walls

For Teachers 9th - 12th
Students observe the cracks in school walls and pavements. In this geometry lesson plan, students explore the factors to be considered before building a structure. They complete a graphing and calculation worksheet after the...