In the early grades, students start recognizing, naming, and drawing shapes. As students become more advanced, geometry becomes more complicated. The following activities aim to help students master these concepts and prepare them for future geometry lessons.
Introduction to Geometry| Identify common and regular polygons | CCSS.MATH.CONTENT.4.G.A.1Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures. | Introduction to Geometry Lesson Plans | Regular Polygon
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Name: Square Sides: 4 sides (quadrilateral); equal length Angles: 4 right angles Special: 2 pairs of parallel sides
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Name: Rectangle Sides: 4 sides (quadrilateral) Angles: 4 right angles Special: 2 pairs of parallel sides
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Name: Acute Isosceles Triangle Sides: 3 sides (triangle) Angles: 3 angles, each less than 90 degrees Special: 2 sides have equal length
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Name: Regular Octagon Sides: 8 sides of equal length Angles: 8 congruent angles Special: 4 pairs of parallel sides
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Name: Regular Pentagon Sides: 5 sides of equal length Angles: 5 congruent angles Special: No parallel sides
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Name: Obtuse Scalene Triangle Sides: 3 sides (triangle) Angles: 1 obtuse and 2 acute angles Special: All sides have different lengths