# Problem Solving

Document Sample

```					   Problem Solving

Problem Solving is easy if you

Understand
the
problem
Step 1 – Understand the problem
• Read the problem carefully two times.
• Underline the question(s) and circle the key
words in the question.
• Rewrite the questions in your own words and
decide on computation sign(s) and steps you
will use.
• Cross out any unnecessary information and
What do I need to know? Will my answer be
larger or smaller than the starting point? Why?
Step 1 - Understand the Problem
Read the problem carefully two times!

• Anne always carried her change in her
pocket. She had 65 cents. Anne was
ready to shop! On her way, she found
25 cents on the sidewalk. From there,
she walked into the gas station where
she bought a bag of chips for 55 cents.
How much money did Anne have left?
Step 1 - Understand the Problem
Underline the question it is asking and circle the
key words inside of the question.
• Anne always carried her change in her
to shop! On her way, she found 25 cents
on the sidewalk. From there, she walked
into the gas station where she bought a
bag of chips for 55 cents. How much
money did Anne have left?
Step 1 - Understand the Problem
Put the question into your own words and then decide
on the step(s) and computation sign(s) you will use.

• Anne always carried her change in her pocket. She had
65 cents. Anne was ready to shop! On her way, she
found 25 cents on the sidewalk. From there, she walked
into the gas station where she bought a bag of chips for
55 cents. How much money did Anne have left?
This word problem is asking me to find out how
much money Anne has left after starting off with 65
cents, finding 25 cents, and then buying chips for 55
cents.       My steps that I will use are first adding 25 cents to 65
cents and then subtracting 55 cents from that answer.
The computational signs I will use are + then -.
Step 1 - Understand the Problem
Cross out any unnecessary sentences.

• Anne always carried her change in
her pocket. She had 65 cents. Anne
was ready to shop! On her way, she
found 25 cents on the sidewalk.
From there, she walked into the gas
station where she bought a bag of
chips for 55 cents. How much money
did Anne have left?
Step 1 - Understand the Problem
What do I need to know?
Will my answer be larger or smaller then the starting point?
Why?
She started with 65 cents
She found 25 cents
Then, she paid 55 cents for chips
I need to know what is left after she added 25
cents and then spent 55 cents.

I think my answer will be smaller then 65 cents because even though
she added 25 cents to her pocket, she paid 55 cents for the chips
and that was only 10 cents less than what she started with.
Problem Solving is easy if you

Decide how
you’re
going to
solve the
problem
Step 2 - Decide how you’re going
to solve the problem
Choose your method. Drawing a picture and/or
writing an equation should always be used!

Use a graph                   Use formulas
Write an equation             Make a list
Find a pattern                Work backwards
Use reasoning                 Draw a picture
Make a table                  Act it out
Step 2 - Decide how you’re going
to solve the problem
I have 65
cents in my
pocket!

Quarter found
This is Anne.                 on the sidewalk.

55 cents out of
pocket for these!
Step 2 - Decide how you’re going
to solve the problem
Write your equation. Put in a variable for the
information that is unknown or the information
that you still need.

\$ .65 to start                       \$ .25 found
\$ .55 for chips                  Total left = ?
My Equation will look like this:

\$ .65 + \$ .25 - \$ .55 = X
Problem Solving is easy if you

Solve
The
Problem
Step 3 - Solve the problem
1                    8 10
\$ 0.65               \$ 0.90
\$ 0.25               \$ 0.55
\$ 0.90               \$ 0.35
Problem Solving is easy if you

Look
Back &
Check
Step 4 - Look Back & Check
Work the problem to check your
1                8 10
\$ 0.35      \$ 0.90
\$ 0.55      \$ 0.25
\$ 0.90      \$ 0.6 5
I will choose to work my
problem backwards to                I got what I started
check.                       with so I know I