The purpose of this lesson is to learn how to use various models to solve equations with variables.

Included is a YouTube video to support Grade 8 Blended Learning Math - Unit 6.1: Linear Equations and Graphing - Solving Equations Using Models.

Students learn about radar imaging and its various military and civilian applications that include recognition and detection of human-made targets, and the monitoring of space, deforestation and oil spills. They learn how the concepts of similarity and scaling are used in radar imaging to create three-dimensional models of various targets. Students apply the critical attributes of similar figures to create scale models of a radar imaging scenario using infrared range sensors (to emulate radar functions) and toy airplanes (to emulate targets). They use technology tools to measure angles and distances, and relate the concept of similar figures to real-world applications.

This hands-on project is an impactful way to show students how truly immense our solar system is! You get to decide if you want your model to show scale planet sizes or the scale distances between planets. You can combine a planet-size model of one scale with a distance model of another scale. But if you want size and distance to be the same scale, you’ll need to spread your model across at least half a mile!
Specific directions on how to calculate size/distance scales are included.