Look for the following material or heading in the contents.

- Reasoning and Proof

· Proofs

· Deductive reasoning

· Direct and indirect proofs - Lines

· Parallel and Perpendicular Lines

· Angles - Triangles

· Congruent

· Isosceles

· Equilateral

· ASA and SAS - Quadrilaterals

· Parallelograms

· Rectangles

· Squares

· Trapezoids - Area

· Squares

· Rectangles

· Triangles - Similarity

· Ratio and proportion

· Similar figures - Right Triangle Trigonometry

· Pythagorean Theorem

· Proportions

· Tangent, Sine, and Cosine - Surface Area and Volume

· Geometric solids

· Rectangular solids

· Spheres - Circles

· Radius

· Chords

· Tangents - Transformations

· Reflections

Notes for use: One of the keys of geometry is learning deductive reasoning or how to do proofs. This can be a challenge to teach, so getting a teachers manual will really help here. The second main idea of geometry is getting used to thinking in space with shapes and the relationships between them. Lots of figures should be drawn.