Parallel Lines Project
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Programs & methods
Equivalent Area Cutouts for Hexagon, Rhombus (Montessori BW print)
These classic Montessori Elementary lesson materials build on prior work with equivalent rectangles and other shapes, and can be used to start work with algebraic notation. HexagonRhombusMultiple ways to create equivalent rectangles with each shape.Math is far better learned with the hands than numbers on a page!Black outline drawing for cheap printing. Print on cardstock, or glue paper to matte/cardboard. Cut along dashed lines.
3rd - 6th
Algebra, Geometry, Mental Math
Area Cutouts for Rectangles, Parallelogram, Triangles (Montessori BW print+cut)
Classic "Yellow Area Material" from Montessori Elementary, helps teach concept of area as measured by identical squares on rectangle. Once that is mastered, this material shows how other shapes with equivalent areas can be converted into rectangles, eventually leading to algebraic notation (A = BH, A = BH/2). RectangleParallelogramRight TriangleAcute TriangleObtuse triangles. Print BW on cardstock (use yellow paper for classic look), or glue paper to cardboard. Cut along dashed lines (NOT solid
3rd - 6th
Algebra, Geometry, Mental Math
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Circle Cutouts for Area, Circumference, Pi (Montessori BW)
Classic Montessori Elementary lessons, help teach relationships between radius, circumference, and area using equivalent circles and rectangle. Also introduces concept and origin of Pi, eventually leading to algebraic notation. Equivalent circles, one cut into pieces to lay out as equivalent rectangle with length equal to the circumference and height equal to pie. Whole equivalent rectangle to compare to cut-up circle.Algebraic cutouts for labeling after initial concept is understood.Math is
3rd - 6th
Algebra, Geometry, Mental Math
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