Overview
  • Visualize a limitless array of fractions in the Fractionizer. Compare, add, subtract, and multiply two fractions with vibrant animations. Educational objectives:

    • Visualize fractions in strip, grid, pie, and numberline formats
    • Create common denominators for addition and subtraction
    • Model multiplication through different processes
    • Comparison of fractions of similar and different numerators and denominators
    • Comparison of fractions to a benchmark of 1/2
    Game features:
    • Intuitive and scrubbable animations
    • Appealing art style
    • Kid-friendly gameplay
    • Suitable for ages 4 and up

  • documentFractionizer Sample Lesson Plan (PDF)

    documentFractionizer Operation Representation Grid (PDF)

    documentFractionizer Sample Lesson Plan (DOCX)

    documentFractionizer Operation Representation Grid (DOCX)

  • Number Explanation
    2.G.1 Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces. (Sizes are compared directly or visually, not compared by measuring.) Identify triangles, quadrilaterals, pentagons, hexagons, and cubes.
    2.G.3 Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.
    3.G.2 Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole.
    3.NF.3c Express whole numbers as fractions, and recognize fractions that are equivalent to whole numbers.
    4.NF.4a Understand a fraction a/b as a multiple of 1/b.
    4.NF.4b Understand a multiple of a/b as a multiple of 1/b, and use this understanding to multiply a fraction by a whole number.
    5.NF.4a Interpret the product (a/b) × q as a parts of a partition of q into b equal parts; equivalently, as the result of a sequence of operations a × q ÷ b.
    5.NF.4b Find the area of a rectangle with fractional side lengths by tiling it with unit squares of the appropriate unit fraction side lengths, and show that the area is the same as would be found by multiplying the side lengths. Multiply fractional side lengths to find areas of rectangles, and represent fraction products as rectangular areas.

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