Rectangle Hunter
Launch this tool in a distraction-free environment optimized for classroom instruction.
About
Rectangle Hunter is a visual puzzle where students drag across a grid to discover and collect hidden rectangles. Rather than just memorizing a formula, they see firsthand how choosing different combinations of rows and columns creates exactly one unique rectangle. It's an engaging, tactile way to connect visual counting with combinatorial mathematics.
STEM connections
This app blends mathematical theory with interactive design, allowing students to physically explore combinations and the multiplication law.
Mathematics: Combinatorics
Students practically apply combinations and the multiplication law to deduce the total number of unique rectangles in a grid.
Technology: Interactive Visualization
The digital interface provides instant visual feedback, helping students track their discoveries without losing count or drawing messy diagrams.
Art: Spatial Reasoning
By highlighting different shapes, students develop their spatial awareness and recognize patterns in geometric structures.
What students will learn
Predict the total number of unique rectangles in an m by n grid.
Explain how the multiplication law and combinations formula apply to visual geometry.
Recognize patterns in spatial arrangements to systematically find all possible shapes.