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3D-Printing Club: Corner Trials

Use tracing, coordinate models, and experimental results to check that translations, reflections, and rotations preserve angle measures.

Grade 8MathInteractive · Printable

Aligned to8.G.A.1.b

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What’s included

Single worksheet
Auto-graded online
1 Common Core standard
Printable answer key
14 questions
Classroom-ready

Details

Format: Interactive · Printable
Grade: Grade 8
Subject: Math
Question types: Fill in the blank, Multiple choice, Circle the answer, Sorting, Short answer, Drawing

About this worksheet

What students practice

Students experimentally compare angle measures before and after translations, reflections, and rotations.
Students use preserved angle measures to evaluate transformed designs and experimental evidence.

How to use

Provide tracing paper, a ruler, and a protractor. Students move traced outlines of flat parts, complete the experiments, and then evaluate design decisions.

Curriculum

Common Core standard covered

8.G.A.1.b

Check by experiment that rotations, reflections, and translations move angles to angles with the same measure.

Preview

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Name Date

3D-Printing Club: Corner Trials

Test whether moving a part changes its angles.

Slide a Part

The club tests flat outlines of 3D-printed parts. Connected segments show the sides of each corner. Use the smaller angle between them. Keep each traced outline unchanged as you move it.

The connected points show a corner of a support part. Trace the corner and translate it 5 units right and 2 units down. Draw the image on the grid. Label the images of A, B, and C as D, E, and F.

Use the original corner and your translated image from question 1. Measure both corners, then check by sliding your tracing from one to the other.

Original angle ABC: °. Translated angle DEF: °.

A connector's corner measures 118°. The club translates its outline to a new position on the print bed. Which receiving corner has the same angle measure as the translated connector?