High School Materials
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K-12: Materials at high school level.
Course Materials
The online materials are supplemented with worksheets from Key to Geometry by Hawley, Suppes, Gearhart, and Rasmussen (Key Curriculum Press) Product Information Other useful resources are:
- Read the introduction Geometry in Art and in the Real World. This will show you some examples of how geometry is used in the real world.
Part I Points, Lines, Segments and Polygons
| Basic Concepts |  |
Points, Lines, Segments, Angles etc. |  |
Squares, Rectangles, Parallelograms and Other Polygons | ||
| Online Worksheets For This Section |  |
Lines and Line Segment Worksheet | |
Angles and their Properties Worksheet | |
Recognizing Polygons Worksheet |
In Key to geometry: Student Workbook 1, Lines and Segments the following pages cover the material:
| Lines: page 3-5 | Pentagons: page 39-40 |
| Line segments and polygons: page 6-18 | Hexagons: page 41-42 |
| Intersection Points: page 19-20 | More about polygons: page 43-46 |
| Lines, segments and polygons again: page 21 - 25 | Accuracy Quiz: page 47 |
| Lines determined by 2 points: page 26-27 | Rays: page 48 |
| Lines and line segments: page 28-32 | Angles: page 49-50 |
| Vocabulary Quiz: page 33 | Congruent figures: page 51-53 |
| Naming and finding triangles: page 34-38 | Practice Test: page 54-55 |
Part II Circles,Arcs, Congruence and Similarity
| Circles and Arcs |  |
Circles |  |
Arcs | ||
| Congruence and Similarity |  |
Congruence |  |
Similarity | ||
| Online Worksheets For This Section | |
Circles Worksheet | |
Circles, part 2 Worksheet | |
Arcs Worksheet |
| More Worksheets For This Section | |
Congruence Worksheet | |
Similarity Worksheet | |
Tangram Worksheet |
In Key to geometry: Student Workbook 2, Circles the following pages cover the material:
| Drawing Circles: page 3-6 | The Radius of an Arc: page 34-35 |
| The Center of the Circle: page 7-10 | Comparing segments: page 36-38 |
| The Radius of the Circle: page 11-13 | Equilateral Triangles: page 39-43 |
| Intersecting Circles: page 14-16 | Intersecting Circles and Triangles: page 44-46 |
| Comparing Segments: page 17-23 | Constructing an Equilateral Triangle: page 47-49 |
| Circles with the Same Segment and Radius: page 24-25 | Constructing Hexagons: page 50-51 |
| Drawing a Segment Congruent to a Given Segment: page 26-28 | Review: page 52-53 |
| Drawing a Circle with Radius Congruent to a Given Segment: page 29-31 | Practice Test: page 54-55 |
| Arcs: page 32-33 |
Part III Symmetry
Resources:
Part IV Tessellations
| Tessellations |  |
Tessellations by Squares, Rectangles and other Polygons |  |
Tessellations by Other Figures | ||
| Online Worksheets For This Section | |
Tessellation Worksheet | |
Tetris and More Worksheet | |
Making Escher-like Tessellations Worksheet |
| Project |  |
Tessellation Project (K12) |
Resources
Part V Miscellaneous
 |
Two and Three Dimensions |  |
Surfaces and Euler characteristic | |
| Online Worksheets For This Section | |
Euler Characteristic | |
Folding Boxes |
Resources
