Tuesday, May 25, 2010
Math 7 (Class 167)
Lesson Title
Investigation 1: Making Comparisons
Overview
In today’s class students continue working with fractions during the opener. In the lesson we move to a new unit of study, Comparing and Scaling, focusing on Ratio, Proportion, and Percent.
Textbook Sections
Problem 1.1 (Txt. p. 5) Writing Ads
Vocabulary
similar
corresponding sides
corresponding angles
segment
ratio
perimeter
Key Attitudes
Willingness to work as a group to help meet individual and group goals.
Enduring Understandings
Changes in various parameters have specific effects on graphs of parent functions in the coordinate plane.
Essential Question
How do different shapes compare to each other?
What is required for two shapes to be similar?
Why do we use multiplication to find fractions of fractions?
Key Knowledge
Similar triangles are formed when a mirror is used to find the height of a building.
When similar triangles are formed, and three pieces of information are known, the fourth one can be determined.
Key Skills
I can create a diagram of a situation.
I can recognize similar triangles in a situation.
I can use similar triangles to determine the height of an object which can not be measured directly.
I can represent multiplying two fractions using multiple representations.
I can represent dividing fractions using multiple representations.
Turn-In (#-1)
No Homework (but the second draft of your “Dividing Fractions” write-up is due Tuesday).
Handouts
No Handouts Posted
Assignment
Finish Fraction Review 3 Practice 1
Disclaimer- The assignment as stated in class is the official assignment. Every effort is made to keep this posting accurate, but you should refer to what was stated in class as the final word.
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