Division as Repeated Subtraction

Division as Repeated Subtraction
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2015-08-11 00:21
This example demonstrates the concept of division by visualizing the process of repeated subtraction, aiding in fundamental understanding. Core math concepts include division, subtraction, and integer operations. It is constructed using commands like Random, If, and Polygon, involving objects such as title2, num1, num2, num3, ans1, ans2, button1, eqn2, eqn4, eqn3, eqn1, divBy0, quest1, quest2, eqn1_1, eqn2_1, eqn3_1, eqn4_1, discPoly, b, c, d, e, a, disc1, title1, text1, text2, text3, f. Suitable for elementary and middle school mathematics teaching, focusing on basic division concept reinforcement and review.

GeoGebra Commands & Parameters

  1. Random(0, 9) → num1
  2. Random(0, 9) → num2
  3. If(num1 ≟ 0 ∨ num2 ≟ 0, true, false) → divBy0
  4. If(divBy0 ∧ num1 ≟ 0, "Undefined", If[num3 ≟ 0, "0", eqn1]) → eqn1_1
  5. If(divBy0 ∧ num1 ≟ 0, "Undefined", If[num3 ≟ 0, "0", eqn2]) → eqn2_1
  6. If(divBy0 ∧ num2 ≟ 0, "Undefined", If[num3 ≟ 0, "0", eqn3]) → eqn3_1
  7. If(divBy0 ∧ num2 ≟ 0, "Undefined", If[num3 ≟ 0, "0", eqn4]) → eqn4_1
  8. Polygon(Corner[1], Corner[2], Corner[3], Corner[4]) → discPoly, b, c, d, e