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Kindergarten
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Number & Operations in Base Ten
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Number & Operations in Base Ten
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Fourth Grade
Operations & Algebraic Thinking
Number & Operations in Base Ten
Number & Operations—Fractions
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Geometry
Fifth Grade
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Number & Operations in Base Ten
Number & Operations—Fractions
Measurement & Data
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Ratios & Proportional Relationships
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HS Number & Quantity
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Seeing Structure in Expressions
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Congruence
Similarity, Right Triangles, & Trigonometry
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Expressing Geometric Properties with Equations
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Conditional Probability & the Rules of Probability
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8.G.A.1
Eighth Grade
Geometry
The Number System
Expressions & Equations
Functions
Geometry
Statistics & Probability
8.G.A.1
8.G.A.1
Verify experimentally the properties of rotations, reflections, and translations:
8.G.A.2
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.G.A.3
Describe the effect of dilations, translations, rotations and reflections on two-dimensional figures using coordinates.
8.G.A.4
Understand that a two-dimensional figure is similar to another if the second can be obtained from the first by a sequence of rotations, reflections, translations, and dilations; given two similar two-dimensional figures, describe a sequence that exhibits the similarity between them.
8.G.A.5
Use informal arguments to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles. For example, arrange three copies of the same triangle so that the sum of the three angles appears to form a line, and give an argument in terms of transversals why this is so.
8.G.A.1
Verify experimentally the properties of rotations, reflections, and translations:
45 Lessons
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8.G.A.1a
Lines are taken to lines, and line segments to line segments of the same length.
20 Lessons
8.G.A.1b
Angles are taken to angles of the same measure.
19 Lessons
8.G.A.1c
Parallel lines are taken to parallel lines
19 Lessons