Determine and explain why plane figures are congruent or noncongruent, using tracing procedures.
The student will identify and describe congruent and noncongruent plane figures.
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Guided explorations of the study of symmetry using mirrors, paper folding, and pattern blocks will enhance students’ understanding of the attributes of symmetrical figures.
Determine a line of symmetry that results in two figures that have the same size and shape and explain reasoning. (a, b)
Create figures with at least one line of symmetry using various concrete materials.
An equilateral triangle has three congruent sides. All angles of an equilateral triangle are congruent and measure 60 degrees.
Children learn about symmetry through hands-on experiences with geometric figures and the creation of geometric pictures and patterns.