Evolution of a Lesson

I've made numerous attempts at helping my geometry students understand the connections between scale factor, perimeter, and area of a polygon. My first attempt was an exploration. I wasn't pleased with the results. It was too challenging for my students who were not confident in calculating area and perimeter. Then I tried extending it by [...]

By | 2021-01-04T18:07:17+00:00 December 31st, 2020|Geometry|0 Comments

Similar Polygon Exploration

Explore the relationship between the ratios of sides of similar polygons. Determine how the perimeters of similar polygons relate to one another. Next explore the relationship between the area of dilations. Remember the scale factor? How does it factor in? Choose between  a coordinate geometry exploration or a Geogebra exploration.    Similar Polygons Explorations

By | 2017-11-13T22:01:56+00:00 February 13th, 2016|Geometry|0 Comments