# Q2 W6 Nov 18-22 Pre-Algebra

Teacher Stephanie Durrance 8th Grade Math (Pre-Algebra) 8th 6 Focus 6: Transformations
Standard(s) Taught
 MAFS.8.G.1.3: Describe the effect of dilations, translations, rotations, and reflections on two-dimensional figures using coordinates.

MAFS.8.G.1.4: 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.

Learning Targets and Learning Criteria
 • describe the changes occurring to x- and y- coordinates of a figure after a translation, reflection, rotation, or dilation. • reason that a 2-D figure is congruent to another if the second can be obtained by a sequence of rotations, reflections, translation. • describe the sequence of rotations, reflections, translations that exhibits the congruence between 2-D figures using words

explain how transformations can be used to prove that two figures are similar. • describe a sequence of transformations to prove or disprove that two given figures are similar. • know the definition of similar and why dilation alone is not enough to determine similarity.

Classroom Activities
 Monday: Bellringer: Number Sense Problem 39 (5 min) Whole Group: ISN – Intro to Transformations (Rotations) Small Group: Three rotations at 20 minutes each. (1 hour) Rotation 1 – Teacher Group (Ready Math Book) – P. 165 Part B Rotations, P 174-175 Mixed Review Rotation 2 – Partners (Worksheet) – Rotations on a Coordinate Plane Kuta Rotation 3 – Independent (Technology) – IXL: P.12 Wednesday: Bellringer: Number Sense Problem 40 (5 min) Whole Group: ISN – Intro to Transformations (Dilations) Small Groups: Identifying Dilations Task Cards, Who’s Correct? Activity Independent: IXL – Q.2 Thursday/Friday: Bellringer: Number Sense Problem 41 (5 min) Whole Group: Review of Transformations – Stations reviewing all transformations including translations, reflections, rotations, and dilations. Partners: Finish rotations of task cards involving all of the different transformations Early Finishers: IXL – Q.1 All IEP and ESOL accommodations provided daily.
Assignments Due
 ·         Homework: IXL- P.12, Q.1, Q.2

Exit Tickets: Rotations Worksheet, He Said She Said Dilations Activity