Q2, W5: December 7 – 11 Pre-Algebra

TeacherKristin Andreason
Subject Area8th Grade Pre-Algebra
Grade Level8
Week #December 7-11
Unit of InstructionFocus 6: Transformations
Standard(s) Taught

MAFS.8.G.1.1: Verify experimental properties of rotations, reflections and translations:  Lines are taken to lines, and line segments to line segments of the same length;  Angles are taken to angles of the same measure;  Parallel lines are taken to parallel lines.

MAFS.8.G.1.2: 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.

MAFS.8.G.1.3: Describe the effect of dilations, translations, rotations, and reflections on two-dimensional figures using coordinates.

Learning Targets and Learning Criteria
  • verify – by measuring and comparing lengths, angle measures, and parallelism of a figure and its image – that after a figure has been translated, reflected, or rotated, corresponding lines and line segments remain the same length, corresponding angles have the same measure, and corresponding parallel lines remain parallel.  
  • describe and apply the properties of translations, rotations, and reflections on lines, line segments, angles, parallel lines and geometric figures. (side, shape and orientation) 
  • explain how transformations can be used to prove that two figures are congruent.                       
  • perform a series of transformations (reflections, rotations, and/or translations) to prove or disprove that two given figures are congruent. 
  • describe a sequence of rigid motions to map one figure onto another. 
  • 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
  • describe a sequence of rigid motions to map one figure onto another.
Classroom Activities

Monday/Tuesday:

  1. Students will log onto the Zoom session
  2. Students will take notes in their ISN on Rotations
  3. We will do a worksheet on Rotations together
  4. Students will do IXL P.13

Wednesday:

  1. Students will log onto the Zoom session
  2. Students will do iReadyThursday/Friday:

Thursday/Friday:

  1. Students will log onto the Zoom session
  2. Students will take notes on Dilations
  3. We will do a worksheet together on Dilations
  4. Students iwll do IXL Q.2
Assignments Due
  • Worksheets on Rotations and Dilations
  • IXL’s P.13 and !.2
  • iReady Quiz
Additional Resources

All IEP and ESOL accommodations will be provided daily.

Khan Academy videos – type any topic in search bar followed by Khan Academy to find an instructional video for additional support. https://www.khanacademy.org/

IXL – Provides support for any grade level math standard.

Edgenuity – https://www.edgenuity.com/