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  2. Pattern Blocks - Wikipedia

    en.wikipedia.org/wiki/Pattern_blocks

    Pattern Blocks. Pattern Blocks are a set of mathematical manipulatives developed in the 1960s. The six shapes are both a play resource and a tool for learning in mathematics, which serve to develop spatial reasoning skills that are fundamental to the learning of mathematics. Among other things, they allow children to see how shapes can be ...

  3. Missing square puzzle - Wikipedia

    en.wikipedia.org/wiki/Missing_square_puzzle

    The missing square puzzle is an optical illusion used in mathematics classes to help students reason about geometrical figures; or rather to teach them not to reason using figures, but to use only textual descriptions and the axioms of geometry. It depicts two arrangements made of similar shapes in slightly different configurations.

  4. Lists of shapes - Wikipedia

    en.wikipedia.org/wiki/Lists_of_shapes

    Solid geometry, including table of major three-dimensional shapes. Box-drawing character. Cuisenaire rods (learning aid) Geometric shape. Geometric Shapes (Unicode block) Glossary of shapes with metaphorical names. List of symbols. Pattern Blocks (learning aid) This article includes a mathematics-related list of lists.

  5. Pentomino - Wikipedia

    en.wikipedia.org/wiki/Pentomino

    The 12 pentominoes can form 18 different shapes, with 6 of them (the chiral pentominoes) being mirrored. Derived from the Greek word for ' 5 ', and "domino", a pentomino (or 5-omino) is a polyomino of order 5; that is, a polygon in the plane made of 5 equal-sized squares connected edge to edge. When rotations and reflections are not considered ...

  6. Tangram - Wikipedia

    en.wikipedia.org/wiki/Tangram

    The tangram (Chinese : 七巧板; pinyin : qīqiǎobǎn; lit. 'seven boards of skill') is a dissection puzzle consisting of seven flat polygons, called tans, which are put together to form shapes. The objective is to replicate a pattern (given only an outline) generally found in a puzzle book using all seven pieces without overlap.

  7. Oval - Wikipedia

    en.wikipedia.org/wiki/Oval

    Oval. An oval (from Latin ovum 'egg') is a closed curve in a plane which resembles the outline of an egg. The term is not very specific, but in some areas (projective geometry, technical drawing, etc.) it is given a more precise definition, which may include either one or two axes of symmetry of an ellipse. In common English, the term is used ...