Lesson Plan

# Ollie (or Sphero) for Interior Angles of Regular Polygons

Students create a code to make a robot create a regular polygon depending on the number of signs that they enter into their code.
Jaclyn C.
Classroom teacher
My Grades 9, 10, 11, 12
My Subjects Math, Science
Objectives

Students will be able to...

• solve problems determining the interior angles of regular polygons

Student Challenge - figure out how to make Mr. Ollie create a regular polygon with 5 sides using the TickleApp. How about 6? 7? 8? 21? Is there a way that the same program (code) could work for all regular polygons if you entered in the number of sides?

Video Sample: https://vimeo.com/129901783

Subjects
Math

#### 1 Create Code - Challenge

Students use the Tickle app on phones or iPads to complete a challenge.

Try putting the challenge like this:

You are challenged to figure out how to make Mr. Ollie create a regular polygon with 5 sides using the TickleApp. How about 6? 7? 8? 21? Is there a way that the same program (code) could work for all regular polygons if you entered in the number of sides?

#### 2 Consolidation

Activity: Other — Consolidating and Sharing

Students share their codes and show their Spheros traveling the polygons.  Teacher consolidates the codes into formulas for students.

#### 3 Practice

Activity: Assessing

Students can do some practice questions finding the interior angle of regular polygons and self-assessing their work.