Formative Instructional and Assessment Tasks

Packaging Soup Cans
4.NBT.1-Task 3
Domain / Numbers and Operations in Base Ten
Cluster / Generalize place value understanding for multi-digit whole numbers.
Standard(s) / 4.NBT.1 Recognize that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right.
Materials / Paper and pencil, activity sheet, base 10 blocks (optional) , Virtual base ten blocks can be found here: http://nlvm.usu.edu/en/nav/frames_asid_152_g_1_t_1.html
Task / Packaging Soup Cans
There are 202 soup cans are in the factory. A crate will hold 200 cans. A case will hold 20 cans. The rest of the cans go into individual boxes. The factory wants to use as few packages as possible.
1.  How many crates, cases, and individual boxes will you need to hold the 202 soup cans?
2.  If you only had cases and individual boxes, how many of each would you need?
3.  If you only had individual boxes, how many would you need?
4.  What did you notice about the number of crates and cases in Part A compared to Part B? Explain your reasoning.
Rubric
Level I / Level II / Level III
Limited Performance
·  Students provide correct answers on two or fewer of the parts above. / Not Yet Proficient
·  Students provide correct answers on all but one of the parts above. / Proficient in Performance
·  Students provide correct answers to all problems.
·  Solutions: 1) 1 crate, 0 cases and 2 individual boxes, 2) 10 cases and 2 individual boxes, 3) 202 individual boxes,4) The explanation says something about the trading of 1 crate for 10 cases. In Part A we needed 1 crate and 0 cases. In Part B, there we needed 10 cases.
Standards for Mathematical Practice
1. Makes sense and perseveres in solving problems.
2. Reasons abstractly and quantitatively.
3. Constructs viable arguments and critiques the reasoning of others.
4. Models with mathematics.
5. Uses appropriate tools strategically.
6. Attends to precision.
7. Looks for and makes use of structure.
8. Looks for and expresses regularity in repeated reasoning.

Packaging Soup Cans

There are 202 soup cans are in the factory. A crate will hold 200 cans. A case will hold 20 cans. The rest of the cans go into individual boxes. The factory wants to use as few packages as possible.

1.  How many crates, cases, and individual boxes will you need to hold the 202 soup cans?

2.  If you only had cases and individual boxes, how many of each would you need?

3.  If you only had individual boxes, how many would you need?

4.  What did you notice about the number of cases in Part A compared to Part B? Explain your reasoning.

NC DEPARTMENT OF PUBLIC INSTRUCTION FOURTH GRADE