A plan for problem solving

A plan for problem solving

Chapter 1 Lesson 5Chapter 1 Lesson 5

A Problem-Solving PlanA Problem-Solving PlanExplore

Plan

Solve

Examine

Problem Solving StrategiesProblem Solving Strategies

Using an EquationUsing an Equation

I = PRTI = P=R=T=

I = PRTI = P=R=T=

Suppose you deposit $220 into an account that pays 3% simple interest. How much money would you have in the account after five years?

How many ways can you make $0.50 using

quarters, nickels and dimes?

How many ways can you make $0.50 using

quarters, nickels and dimes?EXPLORE:

What information is given?

What do I need to find out?

EXPLORE:What information is given?

What do I need to find out?

PLAN:Select a strategy:

Estimate what you think the answer should be:

PLAN:Select a strategy:

Estimate what you think the answer should be:

SOLVESOLVE

EXAMINE:EXAMINE:

Check your answer. Does it make sense?

Check your answer. Does it make sense?

Leona is 12 years old, and her sister Vicki is 2 years old. How old will each of them be when Leona is twice as old as Vicki?

Leona is 12 years old, and her sister Vicki is 2 years old. How old will each of them be when Leona is twice as old as Vicki?

EXPLORE:What information am I given?

What do I need to find out?

EXPLORE:What information am I given?

What do I need to find out?

PLAN:PLAN:

Select a strategy:

Estimate what you think the answer should be:

Select a strategy:

Estimate what you think the answer should be:

SOLVE:SOLVE:

EXAMINE:EXAMINE:

Check your answer. Does it make sense?

Check your answer. Does it make sense?

Zoe has the following breads, mean and cheeses to choose from to make a sandwich. How many

different sandwiches can she make if she can only use one type of bread, meat and cheese at

a time?

Zoe has the following breads, mean and cheeses to choose from to make a sandwich. How many

different sandwiches can she make if she can only use one type of bread, meat and cheese at

a time?

BREAD MEAT CHEESE

White Ham Swiss

Rye Turkey Provolone

Salami

EXPLORE:EXPLORE:

What information am I given?

What do I need to find out?

What information am I given?

What do I need to find out?

PLAN:PLAN:

Select a strategy:

Estimate what you think the answer should be:

Select a strategy:

Estimate what you think the answer should be:

SOLVE:SOLVE:

EXAMINEEXAMINE

Check your answer. Does it make sense?

Check your answer. Does it make sense?

1. Michael is 3 years older than Andrew. The sum of their ages is 15. How old are

they?

1. Michael is 3 years older than Andrew. The sum of their ages is 15. How old are

they?

Janice and Michelle take turns driving as they go to the beach. Janice drives 35

miles farther than Michelle. How far did Michelle drive if together they drove a total

of 155 miles?

Janice and Michelle take turns driving as they go to the beach. Janice drives 35

miles farther than Michelle. How far did Michelle drive if together they drove a total

of 155 miles?

Isabelle deposits $1200 into her savings account, which has an interest rate of 3%.

How much money will she have in her account after 4 years?

Isabelle deposits $1200 into her savings account, which has an interest rate of 3%.

How much money will she have in her account after 4 years?

How many ways are there to make $0.30 using pennies, nickels and

dimes?

How many ways are there to make $0.30 using pennies, nickels and

dimes?

The volume of a box is the product of its length, width and height. What is the volume of a box whose length is

14 inches, width is 8 inches and height

is 6 inches.

The volume of a box is the product of its length, width and height. What is the volume of a box whose length is

14 inches, width is 8 inches and height

is 6 inches.

Austin, Claire, Sydney and Matt are the first four batters on a baseball team. The coach is still

deciding on the order in which to have them bat. How many different ways can the coach arrange

them?

Austin, Claire, Sydney and Matt are the first four batters on a baseball team. The coach is still

deciding on the order in which to have them bat. How many different ways can the coach arrange

them?

Gasoline costs $1.21 per gallon, tax included. Jaime paid $10.89 for the

gasoline he put in his car. How many gallons of gasoline did he buy?

Gasoline costs $1.21 per gallon, tax included. Jaime paid $10.89 for the

gasoline he put in his car. How many gallons of gasoline did he buy?

Ryan paid for 6 CDs at a special 2-for-1 sale. The CDs that he got at the sale

brought the total number of CDs in his collection to 42. How many CDs did he

have before the sale?

Ryan paid for 6 CDs at a special 2-for-1 sale. The CDs that he got at the sale

brought the total number of CDs in his collection to 42. How many CDs did he

have before the sale?