The document contains notes from a math lesson on reflections. It includes examples of reflecting shapes over the x-axis, y-axis, and lines like y=x and y=-x. Students are prompted to practice identifying reflections and describing the process of reflecting over a line not on the x or y-axis. An upcoming quiz is scheduled for September 28th or 29th depending on whether the student is in group A or B.

1. G1 Lesson 4 Day 2.notebook
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September 20, 2016
Do Now:
1.) Discuss Closing Activity
from last class
2.)
Module 8.2 Lesson 4
Day 2
Reflections
Supplemental Practice
pg 39
Link
Closing Activity
Explain your procedure for reflecting a shape
over a line.

2. G1 Lesson 4 Day 2.notebook
2
September 20, 2016
Do Now:
1.) Discuss Closing Activity
from last class
2.)
Reflections
Supplemental Practice
pg 39
Link
Closing Activity
Explain your procedure for reflecting a shape
over a line.
Module 8.2 Lesson 4
Day 2
Quiz 1 9/28 A Day
9/29 B Day

3. G1 Lesson 4 Day 2.notebook
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September 20, 2016
Supplemetal Practice pg 35

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Supplemetal Practice pg 36

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DO NOW:

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7. Is this a reflection?
a) b)

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c) d)

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There are 3 types of reflections:
1. reflect over x-axis
2. reflect over y-axis
3. reflect over a line
The symbol for reflection is rx-axis

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A (4,0)
B (5,2)
C (8,1)
x = 2 what does this mean?
S.37
1.

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A (-4,2)
B (-4,3)
C (-1,3)
y = -1
what does this mean?
2.

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Reflection in y = x
r (x,y) = (y,x)y = x

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A (-1,2)
B (-2,6)
C (1,6)
y = x
what does this mean?
3.
38

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Reflection in y = -x
r (x,y) = (-y,-x)y = -x

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September 20, 2016
A (2,2)
B (4,2)
C (4,5)
y = -x
what does this mean?
4.

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September 20, 2016
Supplemental Practice: Pg 39
1
2

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Closing Activity
Explain your procedure for reflecting over a
line that is not the x-axis or y-axis.