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IM 8 Ch6 Closure
CPM Materials modified by Mr. Deyo
The activities here offer you a chance to reflect about what you have learned during this chapter.
As you work, look for concepts that you feel very comfortable with, ideas that you would like to learn more about, and topics you need more help with.
IM 8 Ch6 Closure
By the end of the period, I will apply different problem‑solving strategies and relect on what I have learned in this chapter.
I will demonstrate this by completing Four‑Square notes and by solving problems in a pair/group activity.
Learning TargetTitle: IM8 ‑ Ch. 6 Closure ‑ What Have I Learned? Date:
IM 8 Ch6 Closure
Home Work: Ch. 6 ClosureDesc. Date Due
What Have I Learned?
9 Problems CL 6‑110 through 6‑118
IM 8 Ch6 Closure
Chapter 6 Vocabulary congruent
conjecture
corresponding parts
dilation
enlarge
linear equation
point of intersection
reduce
IM 8 Ch6 Closure
Chapter 6 Vocabulary (Continued)reflection
rigid transformation
rotation
scale factor
similar figures
systems of equations
translation
yintercept
IM 8 Ch6 Closure
SUMMARIZING MY UNDERSTANDING
WHAT HAVE I LEARNED?
This section gives you an opportunity to show what you know about certain math topics or ideas. Your teacher will give you specific directions for exactly how to do this and will provide you with instructions about how to summarize your understanding of transformations and undoing transformations. In this activity, you will use a triangle to review transformations.
Predict and Order: Predict how each transformation will change or move the shape. Select an order for the four transformations and predict what the new coordinates of the vertices will be after each step.
Apply Transformations: Follow the transformation steps you described on the graph. Use color and written descriptions to show how each transformation alters the shape and its position on the coordinate graph. Check that the coordinates you predicted were correct.
IM 8 Ch6 Closure
SUMMARIZING MY UNDERSTANDING: What Have I Learned?This section gives you an opportunity to show what you know about certain math topics or ideas. Your teacher will give you specific directions for exactly how to do this and will provide you with instructions about how to summarize your understanding of transformations and undoing transformations. In this activity, you will use a triangle to review transformations.Predict and Order: Predict how each transformation will change or move the shape. Select an order for the four transformations and predict what the new coordinates of the vertices will be after each step.Apply Transformations: Follow the transformation steps you described on the graph. Use color and written descriptions to show how each transformation alters the shape and its position on the coordinate graph. Check that the coordinates you predicted were correct.
Tracy Triangle’sTransformative Travels
1) Add 5 to each xcoordinate.2) Multiply each ycoordinate by −1.3) Multiply each coordinate by 2.4) Add −8 and then 3 to each xcoordinate.5) Add 9 and −4 to each ycoordinate.
IM 8 Ch6 Closure
SUMMARIZING MY UNDERSTANDING: What Have I Learned?Undo Transformations: To get the triangle back to the original position, undo your transformations. You may choose to undo each transformation step or to find a new series of steps to return the shape to its original position. Using color, symbols, and written descriptions, show how each transformation changes the shape’s size and position on the coordinate graph.
Tracy Triangle’sTransformative Travels
1) Add 5 to each xcoordinate.2) Multiply each ycoordinate by −1.3) Multiply each coordinate by 2.4) Add −8 and then 3 to each xcoordinate.5) Add 9 and −4 to each ycoordinate.
UNDOTransformative Travels
1) __________________
____________________
2) __________________
____________________
UNDOTransformative Travels
3) __________________
____________________
4) __________________
____________________
5) __________________
____________________
IM 8 Ch6 Closure
CL 6110
Priscilla and Ursula went fishing. Priscilla brought a full box of 32 worms and used one worm every minute. Ursula brought a box with five worms and decided to dig for more before she began fishing. Ursula dug up two worms per minute. When did Priscilla and Ursula have the same number of worms? Show how you know.
Write an expression that represents each person. Set the expressions equal to each other. Solve the problem. Show your work.
Priscilla Ursula
Priscilla and Ursula have the same number of worms when
IM 8 Ch6 Closure
CL 6111You will need a second graph for List II. Complete each list of transformation steps you could use to move triangle B back to where it started at position A, and show each transformation on your graph.
List I1. Rotate triangle B 180° about point (−1,−1).
2. _____________________________
_______________________________
3. _____________________________
_______________________________
List II1. Reflect triangle B across the yaxis.
2. _______________________________
_________________________________
3. _______________________________
_________________________________
IM 8 Ch6 Closure
CL 6112. Neatly graph the points (−2,9), (−3,7) and (−5,10) on a fourquadrant graph. Connect them to make a triangle. Then, for each transformation described below: • Write and simplify an expression to find the new coordinates.
• Check your answer on your graph.
b) Reflect the triangle across the y‑axis.
a) Slide the triangle right 4 units and down 6 units.
IM 8 Ch6 Closure
CL 6113 CL 6113. The shapes here are similar.
a. What is the scale factor?
b. Find the sides labeled x and y.
x =y =
IM 8 Ch6 Closure
Khan
CL 6114. As Khan and Jorman practice for college entrance tests, their scores increase. Khan’s current score is 750 and is rising 8 points per week. Jorman’s current score is 650 but is growing by 30 points per week. Write an equation or system of equations to determine when Jorman will catch up with Kahn. Be sure to define your variable(s).
Jorman
Jorman will catch up with Kahn at week _________.
IM 8 Ch6 Closure
CL 6116. Samantha is dilating triangle ABC below. She multiplied each x‑coordinate and y‑coordinate of triangle ABC by −2.
b) Describe how triangle ABC changed.
a) Graph Samantha’s new triangle.
A (3, 2)B (2, 2)C (1, 2)
A'( , )B'( , )C'( , )
IM 8 Ch6 Closure
CL 6117. A trapezoid has a perimeter of 117 cm. The two shortest sides have the same length. The third side is 12 cm longer than one short side. The final side is 9 cm less than three times one short side. How long is each side of the trapezoid?Define a variable and write an equation to represent this problem. Solve your equation and write your answer in a complete sentence.
IM 8 Ch6 Closure
CL 6118a For each of the previous problems (CL6110 to CL6117), do the following:
Color or shade in a portion of the bar that represents your level of understanding and comfort with completing that problem on your own.
CL 6110CL 6111CL 6112CL 6113CL 6114
CL 6116CL 6115
CL 6117
IM 8 Ch6 Closure
CL 6118b If any of your bars are less than a 5, choose one of those problems and complete one of the following tasks:
Which problem did you choose? CL 6____
Write two questions that you would like to ask about that problem.1)
2)
Brainstorm two things that you DO know about that type of problem.1)
2)
?
?
IM 8 Ch6 Closure
CL 6118c If any of your bars are 5 or above, choose one of those problems and do one of these tasks:
Which problem did you choose? CL 6____
Write two questions you might ask or hints you might give to a student who was stuck on the problem.1)
2)
Make a new problem that is similar and more challenging than that problem and solve it.
?
?
IM 8 Ch6 Closure
WHAT TOOLS CAN I USE?You have several tools and references available to help support your learning – your teacher, your study team, your math book, and your Toolkit, to name only a few. At the end of each chapter you will have an opportunity to review your Toolkit for completeness as well as to revise or update it to better reflect your current understanding of big ideas.
The main elements of your Toolkit should be your Learning Logs, Math Notes, and the vocabulary used in this chapter. Math words that are new to this chapter appear in bold in the text. Refer to the lists provided below and follow your teacher’s instructions to revise your Toolkit, which will help make it a useful reference for you as you complete this chapter and prepare to begin the next one.Learning Log Entries
Lesson 6.1.3 – Rigid TransformationsLesson 6.2.1 DilationsLesson 6.2.3 – Finding Similar ShapesLesson 6.2.6 – Finding Missing Sides of Similar Shapes
Math Notes
Lesson 6.1.3 – Rigid TransformationsLesson 6.2.2 – Corresponding Parts of Similar ShapesLesson 6.2.6 – Scale Factor
IM 8 Ch6 Closure
Chapter 6 Vocabulary congruent
conjecture
corresponding parts
dilation
enlarge
linear equation
point of intersection
reduce
IM 8 Ch6 Closure
Chapter 6 Vocabulary (Continued)reflection
rigid transformation
rotation
scale factor
similar figures
systems of equations
translation
yintercept
IM 8 Ch6 Closure
Chapter 5 Vocabulary coefficient
constant term
counterexample
Equal Values Method
equivalent
Fraction Buster Method
growth factor
linear equation
IM 8 Ch6 Closure
Chapter 5 Vocabulary (Continued)point of intersection
solution
standard form
system of equations
term
variable
yintercept
y = mx + b form
IM 8 Ch6 Closure
Chapter 4 Vocabulary Reviewgraph
growth factor
parabola
parameter
rule
solution
tile pattern
variable
x → y table
yintercept
IM 8 Ch6 Closure
Chapter 3 Vocabulary ReviewCombining Like Terms
Continuous Graph
Dependent Variable
Discrete
Distributive Property
Evaluate
Independent Variable
Order of Operations
Parabola
Solution
Term
Variable
Vertex
xintercepts
yintercepts
IM 8 Ch6 Closure
Chapter 2 Vocabulary ReviewAdditive Identity
Additive Inverse
Associative Property
Combining Like Terms
Commutative Property
Equation
Evaluate
Expression
Multiplicative Identity
Order of Operations
Term
Variable