# ALEX Classroom Resource

## Shifting Shapes

Classroom Resource Information

Title:

Shifting Shapes

URL:

https://teacher.desmos.com/activitybuilder/custom/5d4380d4fc08cd0a943e099d

Content Source:

Other
Desmos
Type: Learning Activity

Overview:

In this Desmos activity, students explore transformations of plane figures and describe these movements in everyday language using words like "slide," "shift," "turn," "spin," "flip," and "mirror." Students are not expected to use formal math vocabulary yet. This lesson provides both the intellectual need for agreeing upon a common language and the chance for students to experiment with different ways of describing some transformations in the plane. This activity should be used to help teach a lesson on transformations. This Desmo activity offers sample student responses and a teacher guide.

Content Standard(s):
 Mathematics MA2015 (2016) Grade: 8 17 ) Understand that a two-dimensional figure is congruent to another if the second can be obtained from the first by a sequence of rotations, reflections, and translations; given two congruent figures, describe a sequence that exhibits the congruence between them. [8-G2] NAEP Framework NAEP Statement:: 4G2e: Match or draw congruent figures in a given collection. NAEP Statement:: 8G2e: Justify relationships of congruence and similarity and apply these relationships using scaling and proportional reasoning. NAEP Statement:: 8G3c: Represent problem situations with simple geometric models to solve mathematical or real-world problems. NAEP Statement:: 8G3f: Describe or analyze simple properties of, or relationships between, triangles, quadrilaterals, and other polygonal plane figures. Alabama Alternate Achievement Standards AAS Standard: M.AAS.8.17- Given a geometric figure and a vertical or horizontal translation and reflection across a vertical or horizontal line, identify the components (lines/sides, angles) of the two figures that are congruent (limited to non-equilateral rectangles and triangles).
Tags: shape, shift, transformations, translations, twodimensional
See Terms: https://www.desmos.com/terms
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