<p> Formative Instructional and Assessment Tasks</p><p>Lawn Mowing Business 4.OA.5 - Task 3 Domain Operations and Algebraic Thinking Cluster Generate and analyze patterns. Standard(s) 4.OA.5 Generate a number or shape pattern that follows a given rule. Identify apparent features of the pattern that were not explicit in the rule itself. For example, given the rule “Add 3” and the starting number 1, generate terms in the resulting sequence and observe that the terms appear to alternate between odd and even numbers. Explain informally why the numbers will continue to alternate in this way. Materials Activity sheet Task Lawn Mowing Business Ted and Nancy both mow lawns during the summer to earn money. Ted charges $10 per lawn and $2 per hour. Nancy charges $4 per lawn and $4 per hour. </p><p>Part 1: Complete the table to show how much Ted and Nancy would each earn based on the amount of time that it took to mow a lawn. Ted Nancy ½ hour 1 hour 1 and ½ hours 2 hours 2 and ½ hours 3 hours 3 and ½ hours 4 hours</p><p>Part 2: Explain how you found the amount for both Ted and Nancy in the table. </p><p>Part 3: Last week, Ted and Nancy each mowed 3 lawns that took 1 and ½ hours each, and 7 lawns that took 3 hours each. How much money did they each earn? Write an equation to show your work.</p><p>NC DEPARTMENT OF PUBLIC INSTRUCTION FOURTH GRADE Formative Instructional and Assessment Tasks</p><p>Rubric Level I Level II Level III Limited Not Yet Proficient Proficient in Performance Performance  The student has  The answers are correct.  The student between two to four  Part 1: is unable to incorrect answers. Ted Nancy use strategies ½ hour 11 6 to find 1 hour 12 8 correct 1 and ½ hours 13 10 answers to 2 hours 14 12 any aspect of 2 and ½ hours 15 14 the task. 3 hours 16 16 3 and ½ hours 17 18 4 hours 18 20</p><p> Part 2: The explanation is clear and accurate.</p><p> Part 3: Ted: 3*$13 + 7*$16 = $151 Nancy: 3*10 + 7*$16 = $142</p><p>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</p><p>NC DEPARTMENT OF PUBLIC INSTRUCTION FOURTH GRADE Formative Instructional and Assessment Tasks Lawn Mowing Business Ted and Nancy both mow lawns during the summer to earn money. Ted charges $10 per lawn and $2 per hour. Nancy charges $4 per lawn and $4 per hour. </p><p>Part 1: Complete the table to show how much Ted and Nancy would each earn based on the amount of time that it took to mow a lawn. </p><p>Ted Nancy ½ hour 1 hour 1 and ½ hours 2 hours 2 and ½ hours 3 hours 3 and ½ hours 4 hours Part 2: Explain how you found the amount for both Ted and Nancy in the table. </p><p>Part 3: Last week, Ted and Nancy each mowed 3 lawns that took 1 and ½ hours each, and 7 lawns that took 3 hours each. How much money did they each earn? Write an equation to show your work.</p><p>NC DEPARTMENT OF PUBLIC INSTRUCTION FOURTH GRADE</p>