Lesson 8

This lesson is optional.

In this lesson, students who haven't had the opportunity to engage with dynamic geometry technology can learn to use it to make a diagram with digital construction tools that are analogous to a compass and straightedge. Students review constructions they have done on paper and build toward more complex constructions made easier by technology. The work of this lesson connects to upcoming work because students will have the opportunity to use this technology throughout the course. The activity Digital Compass and Straightedge Construction is left open and unstructured intentionally so students have the opportunity to make sense of problems (MP1).

Encourage students who finish an activity early to play, make a composite figure, or recreate a design from a previous lesson.

Acquire devices that can run GeoGebra (recommended) or other dynamic geometry technology. It is ideal if each pair of students has a device. (The GeoGebra Construction App and Geometry App are available under Math Tools.)