Grading Directions
2DCA Arrays, Length, Odd/Even
Name:________________________
1. Look at the picture below. How many dots in all? (2OA4)
1 – choice C
0-any other
choice
a. 18
b. 15
c. 12
d. 9
------------------------------------------------------------------2. Which addition sentence matches the array? (2OA4)
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
1 – Choice D
0 – Any other
choice
a. 5 + 5 = 10
*
*
*
*
*
b. 5 + 5 + 5 = 15
c. 5 + 5 + 5 + 5 = 20
d. 5 + 5 + 5 + 5 + 5 = 25
---------------------------------------------------------------------2
3. Rosie bought a sheet of stickers.
The stickers come in
4
rows of
5 stickers in each row.
(Part A): Draw a picture to show the amount of stickers Rosie bought. (2OA4)
– Picture and
number sentence
matches story
problem with correct
answer
1 – Picture OR
number sentences
matches but not both
0- Picture and
number sentence do
not match the story
problem.
(Part B) Write a number sentence to match your array: (2OA4)
___ + ____ + ____ + _____ = _______
-------------------------------------------------------------------
4. Mary baked 36 cookies. Her mom baked some more. When they finished,
they had
60 cookies in all. How many cookies did Mary’s mom bake?
(Part A): Show your work in the box below
Mary’s mom baked ______cookies.
(2MD5)
2- Used a correct
algorithm and
got correct
answer of 24
cookies.
1-Used the
correct algorithm
but got incorrect
answer.
0- Used the
wrong algorithm
to solve the
problem.
2DCA Arrays, Length, Odd/Even
Name:________________________
(Part B): Which number sentence below could NOT be used to solve the problem?
(a)
5.
36+60 = ?
(b)
60-36 = ?
(c)
1 – Choice A
0 – Any
other choice
36 + ? = 60
Look at the picture below. (2OA3)
Part A and B
(2=counted/labeled correctly, 1=counted wrong but label for wrong number is correct. 0=labeled wrong)
(Part A) How many stars? ______Is the number of stars even or odd? ____________
(Part B) How many hearts?_____Is the number of hearts even or odd?____________
(Part C) Is the total number of hearts and stars an even number or an odd number? ________
Explain how you know the total number of stars is Even or Odd:
Part C:
2 = total correct (12 in all) with correct label (even). Explains or shows there are none left out.
1 = Correct label (even) but does not really show what even means. (ex) says ends in 2 so it must be even
1 = Total is wrong but explanation explains and matches the incorrect total
----------------------------------------------------------------------------6. Jane was studying her doubles facts. Look at her flash cards below. (2OA3)
2+2= 4
3+3=6
4+4=8
5+5=10
6+6=12
She thinks that the sum is always an even number.
Do you agree? YES or NO
Draw a picture in the box below to prove it:
2= Yes, Sum is even and draws a picture to show an example
1= Yes, Sum is even, Picture does not prove an example
0= No, Sum is not even
-------------------------------------------------------------------------Use the picture below to answer #7 and #8
2DCA Arrays, Length, Odd/Even
7.
1= C
0= all other choices
About how long is the crayon? (2MD3)
a. 8 inches
8.
Name:________________________
b. 4 inches
c. 3 inches
d. 1 inch
About how long is the pencil? (2MD3)
a. 16 centimeters
b. 15 centimeters
9. A real hammer is about how long?
c. 14 centimeter
d. 6 centimeters
1= A
0 = All other choices
(2MD3)
1=B
a. 1 centimeter
b. 1 foot
c. 1 inch
d. 1 meter
0= all other choices
----------------------------------------------------------------------------10. Shayla has two pencils. The first pencil is 5 cm long. The second pencil is
How much shorter is the first pencil than the second pencil? (2MD4)
12 cm long.
1=C
a. 5 cm
b. 7 cm
c. 12 cm
d. 17 cm
0 = all other choices
----------------------------------------------------------------------------11. Tom measured 3 fish and made this chart to show the results.
2=Subtracted goldfish from
How many inches shorter is the gold fish than the catfish? (2MD5)
catfish 8- 4 and got 4 inches
1=Subtracted 8 – 4 but did not
Tom’s Fish
get inches
Type of Fish
Length in Inches
0= Subtracted or added wrong
Goldfish
4 inches
numbers.
Bass Fish
6 inches
The goldfish is ______inches shorter than the catfish.
Catfish
8 inches
------------------------------------------------------------------------12. You are going to measure the length of the hallway from your classroom
to the PE door. (2MD1)
2 = Chooses yardstick, tape measure or meter
stick and explains that it’s a longer distance
What measurement tool would you use? ____________________________
Explain why this is the best tool for the task.
1= Chooses ruler and explains that it’s a
distance
0- any other measuring tool, or no
___________________________________________________________________________
explanation
___________________________________________________________________________
___________________________________________________________________________
13. Sam and Joe both measured the length of the same pencil.
Sam measured in inches. Joe measured in centimeters.
(2MD2)
(Part A) Which of the following choices could be the correct measurements for Sam and Joe?
(a) Sam = 4 inches
Joe = 9 cm
(b) Sam = 9 inches
Joe = 4 cm
2 = Chooses A -Sam 4 inches, Joe 9 cm AND
(c) Sam = 9 inches
Joe =9 cm
explains that the inches would be a smaller number
than the cm because inches are larger than cm (or
(Part B) How do you know?
vice versa)
1 = chooses A (Sam 4 inches, Joe 9 cm) but does not
explain with reasonable answer
0= Did not choose correct answer or explain
2DCA Arrays, Length, Odd/Even
Name:________________________
___________________________________________________________________________
___________________________________________________________________________
14. Use your ruler to measure the line below. (2MD1)
One point
__________________________________
each for
inches (3) and cm (8)
(a)
(b)
______ inches
_____
centimeters
15. Look at the picture below. How
crayon? (2MD1)
long is the
1 = 5 inches
0 = any other answer
The crayon is _______ inches long.
----------------------------------------------------------------------------
16. Sue’s dad was 75 inches tall. Sue’s mom is 61 inches tall. How much taller is
Sue’s dad than Sue’s mom? Show your work below. (2MD5)
2 = Used a correct operation to solve the problem and
got the correct answer
1= Used the correct operation to solve the problem but
made an error in the answer
Sue’s dad is _____ inches taller than Sue’s mom.
-------------------------------------------------------------------------BONUS: Use the clues to find the secret number.
The number is even. It has 5 tens. It is less than 54.
40
50
60
a. 56
41
51
61
42
52
62
b. 53
43
53
63
44
54
64
45
55
65
46
56
66
c. 52
47
57
67
48
58
68
49
59
69
d. 44
PLUS 4 points on overall score
for choosing C -52.