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Real number system foldable

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Foldables for the real number system

Foldables for the real number system

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  • 1. Real Number System Foldable This Idea came from Dinah Zike's Foldables. Directions were revised by Jamal Hutchinson, Numeracy Coach Johnson/Baxter ALC, original by Barbara Broadway, Math Mentor at Maplewood High School
  • 2. Materials
  • 3. Materials Pre-Cut
    • Dark Green 8 ½ in. x 11 in
    • Yellow 8 ½ in. x 5 ½ in.
    • Bright blue 4 ¼ in. x 5 ½ in.
    • Beige 4 ¼ in. x 5 ½ in.
    • Orange 4 ¼ in. x 5 ½ in.
    • Light green 4 ¼ in. x 5 ½ in.
    • Pink 4 ¼ in. x 5 ½ in.
  • 4. Types of Folds
  • 5. Hot dog fold light green
    • Cut a window by cutting a ½ in from bottom to a ½ in to the long side to a ½ in from the top.
    • Stop cutting. Don’t cut across on the top.
  • 6. Hot dog fold orange
    • Cut a window by cutting a ½ in from bottom to a ½ in to the long side to 1 in from the top.
    • Stop cutting. Don’t cut across on the top.
  • 7. Hamburger fold yellow sheet.
    • Cut a window by cutting a ½ in from bottom to a ½ in to the long side to a ½ in from the top.
    • Stop cutting. Don’t cut across on the top.
  • 8. Assembly
    • Slightly hamburger and hotdog fold the dark green sheet
    • Center the pink sheet on the left side paper
  • 9.
    • Slightly hamburger and hotdog fold the dark green sheet
    • Center the light blue sheet on the right side paper
  • 10.
    • Apply glue around the edges of the pink rectangle and lay the beige rectangle on it so that it opens from bottom to top.
  • 11.
    • Apply glue around the edges of the beige rectangle and lay the orange rectangle on it so that it opens from bottom to top.
  • 12.
    • Apply glue around the edges of the orange rectangle and lay the light green rectangle on it so that it opens from bottom to top.
  • 13.
    • Apply glue around the edges of the rectangle made up of the light green and bright blue rectangle
    • No glue down the middle where they join
    • Lay the yellow rectangle on them so that it opens from bottom to top.
  • 14. Label
    • Pink: N = Natural Numbers or Counting Numbers 1,2,3,4…
    • Beige: W = Whole Numbers 0,1,2,3….
  • 15.
    • Orange: Z = Integers …-3,-2,-1,0,1,2,3…
    • Light green: Q = Rational Numbers a/b a and b Z, b = 0
  • 16.
    • Bright blue Ir = Irrational Numbers non-terminating and non-repeating decimals, pi, square roots of non perfect squares, pattern decimals, golden ratio.
    • Yellow: R = Real Numbers
  • 17.
    • All colors can be changed for another color.
    • Only thing that matters is the folds and cuts.

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