Peer Coach

Collaborative learning, Structured Peer Feedback

Apply the identity to optimize arm designs.

Peer Coach Worksheet

Checklist:

• I sketched three well-spaced points for my robot arm—two valid and one clearly invalid.

• I labeled each point with (x, y) coordinates on my sketch.

• I checked each point using x²+y² and marked them as VALID or INVALID.

• As a peer coach, I verified my partner’s calculations and gave thoughtful feedback on their point placement, arm reach, and realistic design issues.

• I made sure my points demonstrated real arm movement (not all close together).

• I discussed or wrote about possible error sources and described how an engineer would realistically respond—by fixing the error, improving the process, or noting if it’s not a big deal.

• I can explain what the Pythagorean Identity checks and why it is important for robot arm design.