advertisement

Formative Instructional and Assessment Tasks Packaging Soup Cans 4.NBT.1-Task 3 Domain Cluster Standard(s) Materials Numbers and Operations in Base Ten Generalize place value understanding for multi-digit whole numbers. 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. 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. 2. 3. 4. How many crates, cases, and individual boxes will you need to hold the 202 soup cans? If you only had cases and individual boxes, how many of each would you need? If you only had individual boxes, how many would you need? What did you notice about the number of crates and cases in Part A compared to Part B? Explain your reasoning. Rubric Level I Limited Performance Students provide correct answers on two or fewer of the parts above. 1. 2. 3. 4. 5. 6. 7. 8. Level II Level III Not Yet Proficient Proficient in Performance Students provide correct Students provide correct answers to all problems. answers on all but one Solutions: 1) 1 crate, 0 cases and 2 individual of the parts above. 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 Makes sense and perseveres in solving problems. Reasons abstractly and quantitatively. Constructs viable arguments and critiques the reasoning of others. Models with mathematics. Uses appropriate tools strategically. Attends to precision. Looks for and makes use of structure. Looks for and expresses regularity in repeated reasoning. NC DEPARTMENT OF PUBLIC INSTRUCTION FOURTH GRADE Formative Instructional and Assessment Tasks 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