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Grade 8

• Strand 2

  • 8.2.A
  • 8.2.B
  • 8.2.C
  • 8.2.D

• Strand 3

  • 8.3.A
  • 8.3.B
  • 8.3.C

• Strand 4

  • 8.4.A
  • 8.4.B
  • 8.4.C

• Strand 5

  • 8.5.A
  • 8.5.B
  • 8.5.C
  • 8.5.D
  • 8.5.E
  • 8.5.F
  • 8.5.G
  • 8.5.H
  • 8.5.I

• Strand 6

  • 8.6.A
  • 8.6.B
  • 8.6.C

• Strand 7

  • 8.7.A
  • 8.7.B
  • 8.7.C
  • 8.7.D

• Strand 8

  • 8.8.A
  • 8.8.B
  • 8.8.C
  • 8.8.D

• Strand 9

  • 8.9

• Strand 10

  • 8.10.A
  • 8.10.B
  • 8.10.C
  • 8.10.D

• Strand 11

  • 8.11.A
  • 8.11.B
  • 8.11.C

• Strand 12

  • 8.12.A
  • 8.12.B
  • 8.12.C
  • 8.12.D
  • 8.12.E
  • 8.12.F
  • 8.12.G

TEKS Math Standard: 8.8.D

use informal arguments to establish facts about the angle sum and exterior angle of triangles, the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles

The Angles of a Triangle

Why tell a kid the rules of a triangle when they can discover them!?