Geometry & Geometric Concepts:
Learning Objectives:
Draw and identify lines and angles, and classify shapes by properties of their lines and angles.
4.G.1 Draw points, lines, line segments, rays, angles, and perpendicular and parallel lines. Identify these in two-dimensional figures.
4.G.2 Classify quadrilaterals and triangles based on angle measure, side lengths, and the presence or absence of parallel or perpendicular lines.
4.G.3 Recognize symmetry in a two-dimensional figure, and identify and draw lines of symmetry.
Essential Concepts and Vocabulary:
Draw and identify lines and angles, and classify shapes by properties of their lines and angles.
4.G.1 Draw points, lines, line segments, rays, angles, and perpendicular and parallel lines. Identify these in two-dimensional figures.
4.G.2 Classify quadrilaterals and triangles based on angle measure, side lengths, and the presence or absence of parallel or perpendicular lines.
4.G.3 Recognize symmetry in a two-dimensional figure, and identify and draw lines of symmetry.
Essential Concepts and Vocabulary:
- point, ray, line segment, line, types of lines (parallel, intersecting, perpendicular), vertex, angle, types of angles (acute, obtuse, right, straight), two-dimensional figures, polygon, triangle, types of triangles (acute, right, obtuse, equilateral, isosceles, scalene), quadrilateral, types of quadrilaterals (trapezoid, parallelogram, rhombus, rectangle, square), pentagon, symmetry, lines of symmetry, symmetrical, measure, degrees,
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