Friday, April 16, 2010
Algerba 2 (Class 72)
Lesson Title
Investigation 4: Using Similarity
Overview
How do you use a map? How does similarity help you understand what is going on? In today’s class students explore these questions.
Textbook Sections
Problem 4.4 (Txt. p.45) Using Map Scales
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
Change is fundamental to understanding functions.
Mathematical relationships can be represented in 4 main ways: Graphical, Numerical, Algebraic, Verbal (written and oral).
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
If shapes are similar, then scale factor between corresponding sides is constant.
Key Skills
I can determine if it is possible to enlarge an advertisement to fit a given set of dimensions.
Turn-In (#-1)
Fraction Review 2 Practice 1 #6-10. Please do your work on separate paper since there is not enough work on the handout for doing this adequately.
Handouts
No Handouts Posted
Assignment
No homework
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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