Monday, May 12, 2008
Algebra (Class 78)
Announcements
Test Friday, April 18 focusing on quadratic relationships.
Lesson Title
CST Test- Part 1
Overview
In today’s class the warm-up remains focused on analyzing distance versus time graphs. After the warm-up students will take part 2 of the CST: Algebra 1. After the test, as time permits, we will then turn our focus to finishing the problem we started last week, “Counting Handshakes”, seeing how this problem is an example of a quadratic relationship and seeing how what we have learned about quadratic relationships can help us understand and make predictions.
Textbook Sections
Supplemental
Connected Math: Frogs, Fleas, and Painted Cubes- Problem 3.2: Counting Handshakes
Vocabulary
rectangle
area
perimeter
maximum
quadratic relationship
parabolas
function
symmetry
line of symmetry
x-intercepts
roots
y-intercepts
parabola
expression
factored form
expanded form
standard form of a quadratic equation
quadratic formula
first difference
second difference
Key Attitudes
Math is about investigating and confirming
Key Ideas
Quadratic patterns of change arise from many different situations.
A table can be used to determine if a pattern of change is or is not quadratic.
All quadratic patterns of change have a second difference that is constant
Key Skills
I can recognize and continue a pattern.
I can make a table of values to represent a pattern
I can use a table of values as a tool for describing a pattern.
I can use a table of values to predict values not in the table.
I can recognize a quadratic pattern of change and write a quadratic equation to represent this pattern.
Turn-In (#77)
No Homework
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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