Formative Instructional and Assessment Tasks Measuring Friendship Bracelets 3.MD.4 – Task 2 Domain Cluster Standard(s) Materials Task Measurement and Data Represent and interpret data. 3.MD.4 Generate measurement data by measuring lengths using rulers marked with halves and fourths of an inch. Show the data by making a line plot, where the horizontal scale is marked off in appropriate units— whole numbers, halves, or quarters. Measuring Friendship Bracelets handouts, Friendship Bracelets handout, rulers, pencils Part 1: Distribute copies of the Measuring Friendship Bracelets handout and Friendship Bracelets handout to students. Read task aloud: Boys and girls in the Sunnyside Art Club made friendship bracelets to sell. Measure each of their bracelets to the nearest ¼ inch and record your measurement data on the line plot. Provide ample time to measure bracelets on the handout and graph data. Part 2: Prompt students to use data from the line plot to answer each question. Read each question aloud: o What was the most common length for a bracelet? o How many bracelets were shorter than 5 inches? o If the Sunnyside Art Club sold bracelets that were 5 ¼ inches or longer for $1.00 each, how much money would they make? o What other questions do you have about the data collected? Level I Limited Performance Student is unable complete either part of the task. Students work is off-task or incomplete. 1. 2. 3. 4. 5. 6. 7. 8. Rubric Level II Not Yet Proficient Student does one of the following: Student correctly completes one part of the task. Student partially completes both parts of the task. Level III Proficient in Performance Student correctly measures each friendship bracelet. Student correctly completes a line plot to represent his/her data. Student correctly answers questions 1-3. 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 THIRD GRADE Formative Instructional and Assessment Tasks Measuring Friendship Bracelets Boys and girls in the Sunnyside Art Club made friendship bracelets to sell. Measure each of their bracelets to the nearest ¼ inch and record your measurement data on the line plot. Bracelet Measurements 4 4¼ 4½ 4¾ 5 5¼ 5½ 5¾ 6 measurements to the nearest ¼ inch Use your completed line plot to answer each question. 1. What was the most common length for a bracelet? 2. How many bracelets were shorter than 5 inches? 3. If the Sunnyside Art Club sold bracelets that were 5 ¼ inches or longer for $1.00 each, how much money would they make? NC DEPARTMENT OF PUBLIC INSTRUCTION THIRD GRADE Formative Instructional and Assessment Tasks Friendship Bracelets NC DEPARTMENT OF PUBLIC INSTRUCTION THIRD GRADE