# Turning Exercise

This task provides guidance in exploring how the robot “pivots”, and which coding is required to do so.
The instructions on this page are followed by two worksheets which can be accessed here:

#### Materials Needed

Students can place the robot by a line to track the turns, or add a long rod to the center of the robot.
This will make it easier for students to see how far the robot turns.

#### Key Understandings

• Students will gain experiences with turning the robot “on the spot”, or “pivoting”.
• They will learn which wheel rotations are required to make the robot turn half a turn, or a full turn, and so on.
• Students will gain a spatial sense of the proportion of wheel rotations and robot turn.

#### Note for Teachers

It can be very confusing to distinguish between robot motions and wheel motions, and once can easily mix up the two. For ease of understanding, we chose turns to describe the robot’s movements and rotations to describe the wheels’ motions.

It is also very easy to use confusing representations of number – language is important. Wheel rotations are a count – asking how many wheel rotations is the most appropriate. Robot turns refer to a distance traveled – asking how far the robot turns is the most appropriate. Awareness of your language can help with your students’ understanding of the concepts.

The wheels rotate

The robot turns

#### Go to:

© 2022 Dr. Krista Francis & Stefan Rothschuh