Dobbins Middle School - 8th Grade Math

Welcome to my 8th grade math blog.


It will serve as my primary means of keeping you informed about your child's math class. I encourage you to visit often to stay abreast as we move through the 8th grade Common Core Georgia Performance Standards (CCGPS).



Monday, August 19, 2013

Week at a Glance: August 19, 2013

Current Unit: Unit 1a Geometric Transformations
Unit Standards:  MCC8.G1, MCC8.G2, MCC8.G3

Crosswalk COACH Connection: Lesson 24

This week in math, we will continue to study the standards in Unit 1a: Rigid Transformations and Congruency.  Students will focus on rotations and reflections, particularly describing the effect that these transformations have on a figure.

On of the big ideas of this unit is that rigid transformation produce images that are congruent to the original figure. Students will recall congruency and demonstrate their understanding by writing congruence statements to identify corresponding sides and angles of two figures. In addition, students will use transformations to determine if figures are congruent.

Again, it is important that students are well versed with the vocabulary to be most successful with this unit. The unit terms include:


  • translation
  • rotation
  • reflection
  • original
  • image
  • clockwise
  • counterclockwise
  • horizontal
  • vertical
  • x-axis
  • y-axis
  • x coordinate
  • y coordinate
  • point of rotation
  • angle of rotation
  • line of reflection
  • equidistant


Below is an outline of this week's agenda. This outline is subject to change based on the needs of the students.

MON    
 -- Rotations Exploration - Part I & II
 -- HW - Complete 6 rotations (images & tables of coordinates)

TUE      
 -- Rotations Exploration - Part III
 -- Analyze six images to identify patterns to explain how rotations impact the coordinates of a figure
 -- HW Rotations Practice

WED
 -- Rotations Quiz
 -- Coordinating Rotations Task

THU
 -- Reflections Exploration Task - Day 1
 -- Complete reflections and questions from Task

FRI
 -- Reflections Exploration Task - Day 2
 -- Students share / summarize. Discovery properties of reflections.


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Advanced Math
The advanced math students are moving at a faster pace. As such, they finished exploring translations and rotations and have moved onto exploring reflections. The weekly outline is as follows:

Monday:
 -- Reflections Exploration Task - Summarize properties of reflections.
 -- HW - Reflecions Practice worksheet

Tuesday:
 -- Rigid Transformation Review Activity - Using Rigid Transformations to determine congruency.
 -- Complete for Homework

Wednesday:
 -- Reflections Exploration - Reflecting over diagonal lines (y = x and y = -x)
 -- Recall congruency / Practice writing statement of congruence

Thursday:
 -- Rigid Transformations Formative Assessment Task

Friday:
 -- Rigid Transformations Review Activity - Transformation Man