Geometry Lessons

Geometry Lessons Links

Unit 1 Tools of Geometry
1 Points Lines and Planes
2 Pythagorean Theorem Supplemental Lesson
3 Line Segments and distance
4 Locating Midpoints
5 Angle Measure
6 Angle Relationships
7 3d figures Day 1
8 3d Figures Day 2

Unit 2 Reasoning and Proofs
9 Inductive Reasoning
10 Logic
11 Conditional Statements
12 Deductive Reasoning
13 Logic Problems
14 Logic Problems Day 2
15 Algebraic Proofs
16 Proving Segment Relationship
17 Proving Angle Relationships

Unit 3 Parallel and Perpendicular Lines
18 Parallel Lines and Transversal
19 Angles and Parallel Lines
20 Angle and Parallel Lines Day 2
21 Slopes of Lines
22 Equations of Lines
23 Proving Lines Parallel

Unit 4 Congruent Triangles
24 Classifying Triangles
24 Perpendiculars and Distance
25 Angles of Triangles
26 Congruent Triangles
27 Proving Triangles Congruent SSS, SAS
29 Proving Triangles Congruent ASA, AAS
30 Isosceles and Equilateral Triangle

Unit 5 Relationships in Triangles
31 Congruence Transformations
32 Coordinate Proof
33 Bisectors of Triangles
34 Medians and Altitudes of Triangles
35 Inequalities in One Triangle
36 Indirect Proof
37 The Triangle Inequality
38 Inequalities in Two Triangles
39 Compass Constructions

Unit 6 Quadrilaterals
40 Angles of Polygons
41 Parallelograms
42 Tests for Parallelograms
43 Rectangles
44 Rhombi and Squares
45 Trapezoids and Kites

Unit 7 Proportions and Similarity
46 Ratios and Proportions
48 Similar Polygons
49 Similar Triangles
50 Parallel Lines and Proportional Parts
51 Parts of Similar Triangles
52 Similarity Transformations
53 Scale Drawings and Models

Unit 8 Right Triangles and Trigonometry
54 Geometric Mean
55 The Pythagorean Theorem and Its Converse
56 Special Right Triangles
57 Trigonometry
58 Angles of Elevation and Depression
59 The Law of Sines and Law of Cosines
60 Vectors

Unit 9 Transformations and Symmetry
61 Reflections
62 Translations
63 Rotations
64 Compositions of Transformations
65 Symmetry
66 Dilations

Unit 10 Circles
67 Circles and Circumference
68 Measuring Angles and Arcs
69 Arcs and Chords
70 Inscribed Angles
71 Tangents
72 Secants, Tangents, and Angle Measures
73 Special Segments in a Circle
74 Equations of Circles

Unit 11 Areas of Polygons and Circles
75 Areas of Parallelograms and Triangles
76 Areas of Circles and Sectors
77 Area of Regular Polygons and Composite Figures
78 Areas of Similar Figures

Unit 12 Extending Surface Area and Volume
79 Surface Areas of Prisms and Cylinders
80 Surface Areas of Pyramids and Cones
81 Volumes of Prisms and Cylinders
82 Volumes of Pyramids and Cones
83 Surface Areas and Volumes of Spheres