You
can verify a math statement
or answer by using
examples or models
of the problem.
For example:
Mrs.
Carroll wants to give
2 pens
to each of the
15
students
in her class. She decided that she will need
30
pens. Make a model to show this answer is correct.
If
each student gets
2 pens,
you can count to see Mrs. Carroll will need
30 pens
in all.
Steve
counted the money
in his piggy bank.
He had
3
quarters,
3 dimes,
2 nickels
and
4 pennies.
He said he had
$1.19. Make a model with coins to show his answer is correct.
Counting the coins
25¢, 50¢,
75¢, 85¢, 95¢, $1.05, $1.10, $1.15, $1.16, $1.17, $1.18, $1.19
Steve had
$1.19
in his bank.
More examples:
Chelsea
was solving an addition problem.
She needed to add:
34 + 22 = 56
She used place value blocks to
show her answer was correct.
+=
Each day Lisa spends 5 more minutes practicing lacrosse. If she
practices lacrosse for 20 minutes on Monday, how long does she
practice lacrosse on Friday?
You
can verify a math statement
or answer by using
examples or models
Steve
counted the money 
25¢, 50¢,
75¢, 85¢, 95¢, $1.05, $1.10, $1.15, $1.16, $1.17, $1.18, $1.19
