Concepts in Motion

Animations are demonstrations of selected Key Concepts and topics from your textbook.
Construct Triangles Using Two Sides and the Included Angle
Placing Figures on the Coordinate Plane for Coordinate Proofs

Interactive Labs are problem-based learning opportunities that provide additional practice on a variety of topics.
Proofs and Congruent Triangles

BrainPOPS are 3- to 5-minute animated movies that provide a clear and concise explanation of a particular topic in an engaging manner.
Similar Triangles