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Unit 10 of 18
Congruence
Same size, same shape — defined by motion.
Every topic follows the curriculum standard
Learn→See→Try→Explain→Verify→Challenge→Transfer→Master
Topics in this unit
4 topics. Each card opens a full topic workspace and supports all eight learning actions.
Congruence via Rigid Motions
The transformational definition
Congruent Figures
Identifying preserved properties
Coordinate Congruence Proofs
Distance and transformation
Three-pathway connections
Study this unit at three depths — current-grade mastery, advanced thinking, and competition mathematics.