This assessment task introduces a concept in graph theory, focusing on nodes and edges and a few graphs that follow certain rules. Graphs that follow the two rules given are called graceful. Throughout the task, students are asked to find ways to gracefully label graphs, starting with simple paths, followed by graphs of two rows of nodes, and then finally by cycle graphs. This assessment task is based the Graceful Graphs activity available on the Julia Robinson Mathematics Festival’s website.

Math Concepts:
patterns
integers
counting numbers
graphs
graph theory
graceful graphs

MYP Related Concepts:
models
patterns

MYP Key Concepts:
form
relationships

MYP Global Context:
Identities and Relationships