Lesson 1.3
September 01, 2011
Section 1.3
PROBLEM SOLVING!!!
Some Strategies:
Brute Force
Act it Out
Guess and Check
What Happens If...?
Draw a Picture/Diagram
Establish a Subgoal
Try Small Numbers
Search for a Pattern
Resolve a Simpler Problem
Work Backward
Aug 31­12:27 PM
PROBLEM SOLVING!!!
How many positive 3-digit numbers abc are there
such that a+b=c? For example, 202 and 178 have
this property of 245 and 317 do not.
Sep 1­8:54 AM
Solving problems by constructing
equations, solving for an indicated
variable and finding restrictions of
equations
Mandy will use part of a garage wall as one of
the long sides of a rectangular rabbit pen. She
wants the pen to be 3 times as long as it is wide.
She plans to use 68 feet of fencing. Find the
dimensions of the pen.
(What strategy would you use?)
Sep 1­9:01 AM
Aug 27­9:26 AM
Solve for the indicated variable.
A = 2( LW + LH + WH) for W
Homework
#4
1.3 Worksheet #1-17
Aug 27­9:48 AM
Aug 27­9:58 AM
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