Congruent Triangles (Chapter 3)
3.2 GeoGebra Activity to test what is enough to prove two triangles congruent (SSS, SAS, ASA, SSA, AAA)
3.8 Geometer's Sketchpad Activity to examine SSA more closely as RHL
3.8 Geometer's Sketchpad Activity to examine SSA more closely as RHL
Indirect Proofs (Chapter 5)
Non-Eucidean Geometry (Chapter 5)
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Want to learn more about non-Euclidean Geometry? Here's more about Spherical Geometry and Hyperbolic Geometry.
Another better explanation may be found at Einstein for Everyone.
To see great circles in action, track airplane flights using the Great Circle Mapper.
Another better explanation may be found at Einstein for Everyone.
To see great circles in action, track airplane flights using the Great Circle Mapper.
Perpendicular Lines and Planes (Chapter 6)
Need another visual for lines perpendicular to a plane?
Here's a 3D model to go with homework problem #19 from 6.3
Here's a 3D model to go with homework problem #19 from 6.3
Space Geometry (Chapter 6)
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Exterior Angle Theorem (Chapter 7)
Geometer's Sketchpad Activity to discover something important about exterior angles of a triangle.
Midline Theorem (Chapter 7)
Geometer's Sketchpad Activity to discover two important facts about midlines.
(A midline is the segment formed by connecting the midpoints of two sides of a triangle.)
(A midline is the segment formed by connecting the midpoints of two sides of a triangle.)
Introduction to Circles (Chapter 9)
Try this interactive exploration of the key concepts from lesson 9.2
Pythagorean Theorem (Chapter 9)
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Wondering where else you can use the Pythagorean Theorem? Check it out here.
Trigonometry (Chapter 9)
Circle Theorems on Geometer's Sketchpad (Chapter 10)
10.1 Sketchpad
10.1 Sketchpad Exploration copy.gsp
10.2 Sketchpad Exploration copy.gsp
10.3 Skecthpad Exploration copy.gsp
10.4 Sketchpad Exploration copy.gsp
10.5 Sketchpad
10.6 Sketchpad Exploration copy.gsp
10.7 Sketchpad Exploration copy.gsp
10.7 Sketchpad Exploration IPAD copy.gsp
10.8 Sketchpad Exploration 2.gsp
10.1 Sketchpad Exploration copy.gsp
10.2 Sketchpad Exploration copy.gsp
10.3 Skecthpad Exploration copy.gsp
10.4 Sketchpad Exploration copy.gsp
10.5 Sketchpad
10.6 Sketchpad Exploration copy.gsp
10.7 Sketchpad Exploration copy.gsp
10.7 Sketchpad Exploration IPAD copy.gsp
10.8 Sketchpad Exploration 2.gsp
Surface Area of Cones (Chapter 12)
Frustums (Chapter 12)
Volume (Chapter 12)
Explore the relationship between the volume of prisms, pyramids, cones, and cylinders. Click HERE.
3D Graphing (Chapter 13)
3D Graphing Tool (Lesson 13.5)
Transformations (Chapter 13)
Locus (Chapter 14)
Need some more information and practice on locus?
Construction (Chapter 14)
Can't remember how to construct an object using only a straight edge and compass?
Other Fun Things That May Interest You
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