pdf Transformations Unit Test

This comprehensive Transformations Assessment evaluates student mastery of rotations, reflections, translations, and dilations on the coordinate plane. Students analyze triangles, quadrilaterals, rectangles, trapezoids, circles, and composite figures while applying rigid transformations and scale factors in both conceptual and procedural contexts.

The assessment requires students to identify transformations applied between figures, determine new coordinates after reflections across the x-axis, y-axis, and other lines, perform 90° and 180° rotations about the origin, and calculate results of translations using vector descriptions. Dilation problems include determining scale factor, identifying image coordinates, and analyzing how perimeter and area change under enlargement or reduction.

Multiple items require students to interpret diagrams, apply coordinate rules such as \((x, y) \rightarrow (-x, -y)\) for 180° rotations, and reason through proportional relationships created by dilations. Because questions vary in format and cognitive demand, this assessment measures both conceptual understanding and computational accuracy.

Skills Assessed

• Identifying and describing rotations (90° and 180°) about the origin

• Reflecting figures across the x-axis and y-axis

• Translating figures using coordinate rules

• Determining scale factor in dilations

• Applying dilations to find new coordinates

• Analyzing changes in length and area under dilation

• Interpreting transformations from coordinate diagrams

Details

• 8 pages

• 25 multiple-choice questions

• Includes rotations, reflections, translations, and dilations

• Answer key included

ID# 0421