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8th Grade Interactive Math Skill Builders

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Geometry and Spatial Sense - CCSS 8.G.B.6, 8.G.B.7, 8.G.B.8, 8.G.C.9

Links verified on 05/22/2019

1. Angles.

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Practice your knowledge of acute, obtuse and alternate angles.  SEE MORE
 
2. Complementary or Supplementary Angles.

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Are the Angles Complementary, Supplementary or Neither? You decide. SEE MORE
 
3. Find the Third Angle of a Triangle.

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Find the number of degrees in the third angle of each triangle. SEE MORE
 
4. Fourth Angle of a Quadrilateral.

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Find the number of degrees in the fourth angle. SEE MORE
 
5. Name that Polygon.

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In this review identify the number of sides or angles in each polygon components. SEE MORE
 
6. Pythagorean Explorer.

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Students find the length of a side of a right triangle by using the Pythagorean Theorem, and then check their answers.  SEE MORE
 
7. Spy Guys Interactive - Area and Perimeter.

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Watch the video and respond at various places in Lesson 12. This video includes sections which ask students to input responses. SEE MORE
 
8. Spy Guys Interactive - Relating Area and Perimeter.

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Watch the video and respond at various places in Lesson 13. This video includes sections which ask students to input responses SEE MORE
 
9. Spy Guys Interactive - Surface Area of Prisms.

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Watch the video and respond at various places in Lesson 14. This video includes sections which ask students to input responses. SEE MORE
 
10. Spy Guys Interactive - Volume and Displacement.

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Watch the video and respond at various places in Lesson 15. This video includes sections which ask students to input responses. SEE MORE
 
11. Spy Guys Interactive - Working with Angles.

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Watch the video and respond at various places in Lesson 16. This video includes sections which ask students to input responses SEE MORE
 
12. Squaring the Triangle.

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Students learn about how the Pythagorean Theorem works, through investigating the standard geometric proof. Parameters: Sizes of the legs of the triangle.  SEE MORE
 
13. The Sine, Cosine and Tangent of an Angle.

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Learn about the sine, cosine and tangent of an acute angle of a right triangle. SEE MORE
 
14. Triangle Explorer.

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Students learn about areas of triangles and about the Cartesian coordinate system through experimenting with triangles drawn on a grid.  SEE MORE
 
15. Triangle Identification.

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Identify the triangle given its angles.  SEE MORE
 
16. Triangle Identification.

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Identify the triangle given its number of sides. SEE MORE
 

Internet4classrooms is a collaborative effort by Susan Brooks and Bill Byles.
 

  

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