Tuesday, March 09, 2010
Math 7 (Class 123)
Lesson Title
Investigation 3: Patterns of Similar Figures
Overview
In today’s class students extend the work started yesterday on determining if two shapes are similar by visual inspection. Using rulers they measure the lengths of the sides of the pairs of figures they previously identified as being similar, and then calculate the scale factors.
Textbook Sections
Problem 3.1 (Txt. p.28) Identifying Similar Figures
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 can transformations be described mathematically?
How do different shapes compare to each other?
What is required for two shapes to be similar?
Key Knowledge
Certain properties of a shape are maintained when a shape is enlarged or reduced.
Key Skills
I can visually determine if two shapes are similar.
Turn-In (#-1)
Rework missed quiz problems. Come in ready with questions.
ACE p.22 #7
Handouts
No Handouts Posted
Assignment
ACE p.33 #1-4
Quiz Corrections
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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