Polya's Problem solving, Summaries of History

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POLYA’S

UNDERSTAND PROBLEM

DEVISE a Plan

Carry Out the Plan

Review the Solution

FOUR STEP PROBLEM SOLVING STRATEGY

LET’S SOLVE THIS PROBLEM

STEP 1

Identify the given in the problem

 Difference is 60

 Sum is 96

FIND

The smaller number.

STEP 2

LET X be the Larger number and,

LET Y be the smaller number.

Eq. 1 X-Y = 60

Eq. 2 X+Y = 96

X=

Since we got the value of X that is equivalent of

78. We will do Eq. 1 and 2 to solve the problem.

Therefore the value of Y is 18 •^ Therefore the value of Y is 18