Free and open educational resources for Afghanistan

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Circles

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The Art Gallery

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Analytic Geometry & Calculus

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The Fence or the Carpet: Understanding Perimeter and Area

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A Story of Functions

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Perimeter and Coin Problems

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Quadratic Word Problems

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Algebra/Geometry Review

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Volume

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Between-Figure and Within-Figure Ratios

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Using Trigonometry to Find Side Lengths of an Acute Triangle

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Trigonometry and the Pythagorean Theorem

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Expressions and Equations

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Geometry Curriculum

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Volume of Prisms

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Lunar Math

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How Do We Measure Angles?

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Three Dimensional Figures

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Volumes and Areas

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Geometry - Parallel and Perpendicular Lines

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Pythagoras' Theorem

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Similar Triangles

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Angle Relationships

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Slope - A Measure of the Steepness of a Line

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Parallel and Perpendicular Lines Worksheet

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Parallel and Perpendicular Lines

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Measuring Angles

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Circumference of a Circle

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Properties of 2D Shapes

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3D Objects