Activity
Rice University

Rice University: Cynthia Lanius: Rectangle Pattern Challenges

For Students 3rd - 8th Standards
Students use rectangles to explore patterns. Once they understand the concept, students can create their own patterns for others to explore.
Interactive
PBS

Pbs Learning Media: Toothpicks: Patterns in Geometric Shapes

For Students 3rd - 8th Standards
This interactive exercise focuses on determining probabilities associated with repeated coin tosses and building tree diagrams to take math out of the classroom and into the real world.