Maurice OReilly – Resources – GeoGebra

Fake Origami & Fractions
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Origami, Symmetry & Peace
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Babylonian multiplication
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around the clock symmetries
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repeated line symmetries
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green & red circles
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Eurovision2019
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Sachimiya no sangaku
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Repeated rotations
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Repeated translations
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Reflections in any two lines
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Reflections in 2 parallel lines
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Reflections in 2 perpendicular lines
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Transformations
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working with angles
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Triangular Area
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Constructing Congruent Triangles
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Alternate Interior Angles
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Red shape
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circular flowerbed
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Hexagon puzzle
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Dudeney: Choosing a Site in a Right Estate
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Dudeney: Choosing a Site in an Isosceles Estate
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Ford Circles
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