Circles are the foundation of many geometric concepts and extensions - a point that is thoroughly driven home in this extensive unit. Fundamental properties of circles are investigated (including sector area, angle measure, and...

Students build on what they know to make new discoveries. In this early childhood lesson plan, students engage in a block-building activity to develop language, math, and fine-motor skills.

Students investigate topology. In this Applied Science instructional activity students explore higher, more abstract mathematics using tangles. Students make topologically related shapes.

Students explore the origin of tangram. In this algebra lesson plan, students form different shapes and figures using tangram. They solve for the area of different shapes without using any geometric formulas, but the idea of tangram...

High schoolers explore the degree, diameter, planarity, and size of graphs.  For this degree, diameter, planarity, and size of graphs lesson, students try to construct a graph with more than 12 vertices that satisfy all other...

Challenge young mathematicians to buy classroom supplies by staying within the means of a $1,000 budget. The mathematical activity provides learners with the opportunity to decide what items from the supply list would benefit a class of...

Students discuss income and expenses. In this lesson on money, students define income and expenses, after whith they keep track of their income and expense transactions on a basic ledger.

Students explore the concept of vertex-edge graphs.  In this vertex-edge graphs lesson, students try to construct a graph with a given diameter, number of vertices, size, and planarity.  Students construct various vertex-edge...