Browse by Grade & Topic: Similarity and Transformations
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Translating and Scaling Functions
Vary the coefficients in the equation of a function and examine how the graph of the function is translated or scaled. Select different functions to translate and scale, and determine what...Lesson Info Launch Gizmo
Dilate a figure and investigate its resized image. See how scaling a figure affects the coordinates of its vertices, both in (x, y) form and in matrix form.Lesson Info Launch Gizmo
Perimeters and Areas of Similar Figures
Manipulate two similar figures and vary the scale factor to see what changes are possible under similarity. Explore how the perimeters and areas of two similar figures compare.Lesson Info Launch Gizmo
Reshape and resize a figure and examine how its reflection changes in response. Move the line of reflection and explore how the reflection is translated.Lesson Info Launch Gizmo
Similarity in Right Triangles
Divide a right triangle at the altitude to the hypotenuse to get two similar right triangles. Explore the relationship between the two triangles.Lesson Info Launch Gizmo
Translate a figure horizontally and vertically in the plane and examine the matrix representation of the translation.Lesson Info Launch Gizmo
Rotations, Reflections, and Translations
Rotate, reflect, and translate a figure in the plane. Compare the translated figure to the original figure.Lesson Info Launch Gizmo
Vary the scale factor and rotation of an image and compare it to the preimage. Determine how the angle measures and side lengths of the two figures are related.Lesson Info Launch Gizmo
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