Illuminations: Supreme Court Handshake

During this lesson, students will explore the handshake problem, a classic problem in mathematics that asks, “How many handshakes occur when n people shake hands with each other?”

Groups work to determine how many handshakes take place among the nine Supreme Court justices, and then generalize to the number of handshakes in any size group. Students explore the problem using a verbal description, a table, a graph, a picture, and an algebraic formula.

 

*Requires membership to access lesson plan.


Algebra & Pre-Algebra
Middle School, Educator

What are you looking for?

Organization

Illuminations (National Council of Teachers of Mathematics)

Website URL

Type of Resource

Lesson Plan

Assigned Categories