Grade 4 Mathematics Module 4, Topic D, Lesson 14

Teacher helping elementary students

Objective:  Define and construct triangles from given criteria.  Explore symmetry in triangles.

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Common Core Learning Standards

CCLS State Standard
4.G.1 Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and...
4.G.3 Recognize a line of symmetry for a two-dimensional figure as a line across the figure such that the...

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