Use Model Drawing Procedure in Four-Step Process

1
Use Model Drawing Procedure in Four-Step Process
Step 1 Main Idea
Step 2 Details

• Main Idea of Question

Step 4
Step 3

• Describe how the problem was solved.

• Work the computation (s).

2
Four Step Process

• Main Idea
• Read the problem.
• Write the main idea in the question.
• Details
• Write who the problem is about (related to main
  idea.)
• Write what the problem is about (related to main
  idea.)
• Draw unit bars of equal length.
• Re-read the problem one sentence at a time
  adjusting the unit bars to match the story and
  identify the question on the model.
• Strategy
• Work the computation (s).
• How
• Describe how the problem was solved.

Model Drawing
3
Put Together
Addition
4
Austin has 9 toys. Jeff has 3 toys. How many
toys do they have together?
Jeff has 3 toys.
Austin has 9 toys.
How many toys do they have together?
Step 1
Step 2
9

Austin Jeff
toys toys
Toys together
?
3
??
Step 4
Step 3
9 3
Add 9 and 3.
12
Second Grade
5
Austin has 22 toys. Jeff has 33 toys. How many
toys do they have?
Jeff has 33 toys.
Austin has 22 toys.
How many toys do they have?
Step 1
Step 2
22

Austin Jeff
toys toys
Toys together
?
33
Step 4
Step 3
22 33
Add 22 and 33.
55
6
Take Away
Subtraction
7
Jeff has 9 toys. He gave 3 toys away. How many
toys does he have now?
He gave 3 toys away.
Jeff has 9 toys.
How many toys does he have now?
Step 1
Step 2

9
__
X
Jeff
toys
Toys now
3
?
Step 4
Step 3
9 - 3
Subtract 3 from 9.
Found the difference between 9 and 3.
6
Second Grade
8
(No Transcript)
9
Jeff has 6 toys. Mary has 4 toys. How many more
toys does Jeff have than Mary has?
Mary has 4 toys.
Jeff has 6 toys.
How many more toys does Jeff have than Mary has?
Step 2
Step 1
6
Jeff Mary
toys toys
4
more toys Jeff than Mary

?
4
?
- - -
Step 4
Step 3
6 - 4
Subtract 4 from 6.
2
Second Grade
10
Jeff has 26 toys. Mary has 14 toys. How many
more toys does Jeff have than Mary has?
Mary has 14 toys.
Jeff has 26 toys.
How many more toys does Jeff have than Mary has?
Step 2
Step 1
26
Jeff Mary
toys toys
14
more toys Jeff than Mary

?
- - -
14
?
Step 4
Step 3
26 - 14
Subtract 14 from 26.
12
11
Ben sold tickets to the game. He sold 8 adult
tickets, 2 student tickets, and 5 children
tickets. How many more adult than children
tickets did he sell?
Ben sold tickets to the game.
2 student tickets,
He sold 8 adult tickets, .
How many
and 5 children tickets.
more adult than children tickets did he sell?
Step 1
Step 2
8
Ben
Adult tickets Child tickets
5
More adult than children tickets
- - -

?
5
?
Step 4
Step 3
8 - 5
Found the difference between 8 and 5.
3
12
Ben sold tickets to the game. He sold 8 adult
tickets, 2 student tickets, and 5 children
tickets. How many more adult than children
tickets did he sell?
Ben sold tickets to the game.
2 student tickets,
He sold 8 adult tickets, .
How many
and 5 children tickets.
more adult than children tickets did he sell?
Step 2
Step 1
8
Adult tickets Student tickets Child tickets
5
Ben
- - -
More adult than children tickets

?
2
?
5
?
Step 4
Step 3
8 - 5
Found the difference between 8 and 5.
3
13
(No Transcript)
14
Jeff has 8 balls. Five balls are baseballs and
the rest are soccer balls. How many are soccer
balls?
Jeff has 8 balls.
Five balls are baseballs and
the rest are soccer balls.
How many are soccer
balls?
Step 2
Step 1
8

Jeff
balls
B
S
soccer balls

5
?
Step 4
Step 3
8 - 5
Found the difference between 8 and 5.
3
Second Grade
15
Jeff has 24 balls. Fifteen balls are baseballs
and the rest are soccer balls. How many are
soccer balls?
Fifteen balls are baseballs
Jeff has 24 balls.
and the rest are soccer balls.
How many are
soccer balls?
Step 1
Step 2
24

Jeff
balls
B
S
soccer balls

15
?
Step 4
Step 3
24 - 15
Found the difference between 24 and 15.
9
16
Multiple Step Operations
Add and Subtract
17
Max had 5 marbles. He gave his friend 3 marbles.
He bought 7 new marbles at the store. Which
number sentence shows how to find how many
marbles he has now?
He gave his friend 3 marbles.
Max had 5 marbles.
He bought 7 new
Which number sentence shows how to find how many
marbles at the store.
marbles he has now?
Step 2
5
7
Step 1
X
Max
marbles

NS-Max marbles now
3
?
Step 4
Step 3
1) I subtracted 3 from 5.
5 - 3
2 7
2) I added 2 and 7.
9
2
Second Grade
18
Max had 5 marbles. He gave his friend 3 marbles.
He bought 7 new marbles at the store. Which
number sentence shows how to find how many
marbles he has now?
He gave his friend 3 marbles.
Max had 5 marbles.
He bought 7 new
Which number sentence shows how to find how
marbles at the store.
many marbles he has now?
Step 2
5
Step 1
X
Max
marbles
NS-Max marbles now
3
7

2
?
Step 4
Step 3
1) I subtracted 3 from 5.
5 - 3
2 7
2) I added 2 and 7.
9
2
Second Grade
19
Cathy has 9 pencils. She gave John 4 pencils.
Sue gave Cathy 2 pencils at lunch. How could you
find how many pencils Cathy has altogether?
Sue gave Cathy 2 pencils
Cathy has 9 pencils.
She gave John 4 pencils.
How could you find how many pencils Cathy has
altogether?
at lunch.
Step 2
2
9
Step 1
X
Cathy John Sue
pencils pencils pencils

4
Find pencils Cathy
?
4
X
2
Step 4
Step 3
9 - 4
Subtract 4 from 9. Then add 5 and 2.
5 2
7
5
Second Grade
20
Cathy has 9 pencils. She gave John 4 pencils.
Sue gave Cathy 2 pencils at lunch. How could you
find how many pencils Cathy has altogether?
Sue gave Cathy 2 pencils
She gave John 4 pencils.
Cathy has 9 pencils.
How could you find how many pencils Cathy has
altogether?
at lunch.
Step 2
2
9
Step 1
X
Cathy
pencils

4
Find pencils Cathy
?
Step 3
Step 4
9 - 4
5 2
Subtract 4 from 9. Add 2 to the difference.
7
5
Second Grade
21
Tammy has a box of ten markers. She has red,
yellow, and purple markers. Three of the markers
are yellow, and four are purple. How could you
find how many markers are red?
She has red, yellow, and purple
Tammy has a box of ten markers.
How could
markers.
Three of the markers are yellow,
and four are purple.
you find how many markers are red?
Step 2
Step 1
10
Tammy
box of markers
Y
P
R
3
red markers
4

?
Step 3
Step 4
10 - 3
7 - 4
Subtract 3 from 10. Subtract 4 from the
difference.
7
3
What's a another way?
Second Grade
22
Victorias parents spent 81 at the shoe store.
Victorias shoes cost 24, and her sisters shoes
cost 29. The rest of the money was spent on her
brother Carlos shoes. How much money was spent
on Carlos shoes?
and
Victorias shoes cost 24,
Victorias parents spent 81 at the shoe store.
The rest of the money was spent on her brother
her sisters shoes cost 29.
Carlos shoes.
How much money was spent on Carlos shoes?
81
Step 1
Step 2
C
V
S
V. parents
money

29
Money Carlos shoes
24
?
Step 4
Step 3
57 -29
Subtracted 24 from 81. Subtracted 29 from 57.
81 _ 24
81 24 - 29
28
57
Ecourage students to see multiple ways!
23
Victorias parents spent 81 at the shoe store.
Victorias shoes cost 24, and her sisters shoes
cost 29. The rest of the money was spent on her
brother Carlos shoes. How much money was spent
on Carlos shoes?
and
Victorias shoes cost 24,
Victorias parents spent 81 at the shoe store.
The rest of the money was spent on her brother
her sisters shoes cost 29.
Carlos shoes.
How much money was spent on Carlos shoes?
Step 2
Step 1
24

Victoria Sister Carlos
Shoes Shoes Shoes
Money Carlos shoes
29
81
?
Step 4
Step 3
24 29
81 - 53
Find the sum of 24 and 29. Subtracted the sum
from 81.
28
53