IM Geometry: Unit 2 - Congruence
In this unit, students begin by reasoning about the relationships between congruent parts of figures, and congruent figures. They use transformations as tools for reasoning and generalizing. To learn more about how to use GeoGebra’s fully digital and interactive curriculum, visit our IM 9–12 Math page.
2.1 Congruent Parts, Part 1
2.2 Congruent Parts, Part 2
2.3 Congruent Triangles, Part 1
2.4 Congruent Triangles, Part 2
2.5 Points, Segments, and Zigzags
2.6 Side-Angle-Side Triangle Congruence
2.7 Angle-Side-Angle Triangle Congruence
2.8 The Perpendicular Bisector Theorem
2.9 Side-Side-Side Triangle Congruence
2.10 Practicing Proofs
2.11 Side-Side-Angle (Sometimes) Congruence
2.12 Proofs about Quadrilaterals
2.13 Proofs about Parallelograms
2.14 Bisect It
2.15 Congruence for Quadrilaterals