IM 8th Grade Unit 1 Mid-Unit Vocabulary

clockwise

• the point a figure rotates around

• in the same direction as the hands of a clock

• moves every point in a figure a given distance in a given direction

• in the opposite direction of the hands of a clock

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

counterclockwise

• the point a figure rotates around

• in the same direction as the hands of a clock

• moves every point in a figure a given distance in a given direction

• in the opposite direction of the hands of a clock

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

congruent

• when every point on a figure is moved a given distance in a given direction

• when every point on a figure is moved around a center by a given angle in a specific direction

• when a figure is flipped over a line and every point on the figure moves to a point directly opposite the line

• when two figures can be moved to fit exactly over each other by translation, reflection, or rotation.

Tags

CCSS.8.G.A.2

rotation

• when every point on a figure is moved a given distance in a given direction

• when every point on a figure is moved around a center by a given angle in a specific direction

• when a figure is flipped over a line and every point on the figure moves to a point directly opposite the line

• when two figures can be moved to fit exactly over each other by translation, reflection, or rotation.

reflection

• when every point on a figure is moved a given distance in a given direction

• when every point on a figure is moved around a center by a given angle in a specific direction

• when a figure is flipped over a line and every point on the figure moves to a point directly opposite the line

• when two figures can be moved to fit exactly over each other by translation, reflection, or rotation.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

translation

• when every point on a figure is moved a given distance in a given direction

• when every point on a figure is moved around a center by a given angle in a specific direction

• when a figure is flipped over a line and every point on the figure moves to a point directly opposite the line

• when two figures can be moved to fit exactly over each other by translation, reflection, or rotation.

vertex

• a point where two or more edges meet

• part of an original figure that matches up with part of a copy

• a movement of all the points in a figure a given distance and direction

• the result of translations, rotations, and reflections on an object

Tags

CCSS.1.G.A.1

CCSS.2.G.A.1

corresponding

• a point where two or more edges meet

• when part of an original figure matches up with part of a copy

• a movement of all the points in a figure a given distance and direction

• the result of translations, rotations, and reflections on an object

Tags

CCSS.8.G.A.2

image

• a point where two or more edges meet

• when part of an original figure matches up with part of a copy

• a movement of all the points in a figure a given distance and direction

• the figure that results from translations, rotations, and reflections on an object

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5