Thanksgiving Day Celebration! - Exemplars ?· Exemplars Thanksgiving Day Celebration! Copyright 2012,…

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<ul><li><p>Exemplars</p><p>Thanksgiving Day Celebration!Copyright 2012, exemplars, Inc. All rights reserved 1 of 4</p><p>Thanksgiving Day Celebration!</p><p>Mrs. McNair is having her family over for Thanksgiving. Her relatives are supposed to arrive at 2:00 p.m. She will have lots to do that day to get ready.</p><p>Here is what she has to do and how long she thinks each job will take:</p><p>Clean the house: 1 hourPreptheturkey,stuffingandmashedpotatoes:11/2hoursSet the table and arrange the decorations: 45 minutesTake a shower, get dressed, etc.: 30 minutesPut out snacks: 20 minutesPick out CDs to listen to and set them in the CD player: 5 minutes</p><p>If Mrs. McNair hopes to get everything done before her family arrives, at what time will she need to start preparing?</p></li><li><p>Exemplars</p><p>Thanksgiving Day Celebration!Copyright 2012, exemplars, Inc. All rights reserved 2 of 4</p><p>Thanksgiving Day Celebration!</p><p>Suggested Grade Span</p><p>35</p><p>Grade(s) in Which Task Was Piloted</p><p>5</p><p>Task</p><p>Mrs. McNair is having her family over for Thanksgiving. Her relatives are supposed to arrive at 2:00 p.m. She will have lots to do that day to get ready.</p><p>Here is what she has to do and how long she thinks each job will take:</p><p>Clean the house: 1 hourPreptheturkey,stuffingandmashedpotatoes:11/2hoursSet the table and arrange the decorations: 45 minutesTake a shower, get dressed, etc.: 30 minutesPut out snacks: 20 minutesPick out CDs to listen to and set them in the CD player: 5 minutes</p><p>If Mrs. McNair hopes to get everything done before her family arrives, at what time will she need to start preparing?</p><p>Alternative Versions of Task</p><p>More Accessible Version:</p><p>Mrs. McNair is having her family over for Thanksgiving. Her relatives are supposed to arrive at 2:00 p.m. She will have lots to do that day to get ready.</p><p>Here is what she has to do and how long she thinks each job will take:</p><p>Clean the house: 1 hourPreptheturkey,stuffingandmashedpotatoes:1hourSetthetableandarrangethedecorations:1/2hourPutoutsnacks:1/2hourPick out CDs to listen to and set them in the CD player: 10 minutes</p><p>If Mrs. McNair hopes to get everything done before her family arrives, at what time will she need to start preparing?</p></li><li><p>Exemplars</p><p>Thanksgiving Day Celebration!Copyright 2012, exemplars, Inc. All rights reserved 3 of 4</p><p>More Challenging Version:</p><p>Mrs. McNair is having her family over for Thanksgiving. Her relatives are supposed to arrive at 2:00 p.m. She will have lots to do that day to get ready.</p><p>Here is what she has to do and how long she thinks each job will take:</p><p>Clean the house: 1 hourPreptheturkey,stuffingandmashedpotatoes:1hour,55minutesSet the table and arrange the decorations: 44 minutesTake a shower, get dressed, etc.: 33 minutesPut out snacks: 22 minutesPick out CDs to listen to and set them in the CD player: 11 minutes</p><p>If Mrs. McNair hopes to get everything done before her family arrives, at what time will she need to start preparing?</p><p>NCTM Content Standards and Evidence </p><p>Measurement Standard for Grades 35: Instructional programs from pre-kindergarten throughgrade 12 should enable all students to ...</p><p>Apply appropriate techniques, tools and formulas to determine measurements.</p><p>NCTM Evidence: Select and apply appropriate standard units and tools to measure length, area, volume, weight, time, temperature and the size of angles. </p><p>Exemplars Task-SpecificEvidence: Students need to measure time and apply concepts of time to this problem-solving situation.</p><p>Time/Context/Qualifiers/Tip(s)FromPilotingTeacher</p><p>This task is a short- to medium-length task. I piloted this task with low-level 5th graders who were just learning to tell time. I used the task to see which concepts and skills they learned in class would be carried over to a problem-solving situation. Since many of my students still relied on Judy Clocks to assist them in telling time, I was curious to see what other strategies they might use to solve the task. Students had also just completed the Crunchkins Pyramid task and knew the importance of organizing their work. I wondered if this strategy would carry over as well.</p><p>Links</p><p>Thistaskwouldfitathemeofpartiesorholidays.</p></li><li><p>Exemplars</p><p>Thanksgiving Day Celebration!Copyright 2012, exemplars, Inc. All rights reserved 4 of 4</p><p>Common Strategies Used to Solve This Task</p><p>Many students create a chart or timeline to solve this task. Some determine the total number of minutes needed and then subtract from the time the party is to start. Others rely on manipulating Judy Clocks or use clock stamps. Students who used Judy Clocks documented each step in their solutions using a digital camera.</p><p>Possible Solutions</p><p>It will take Mrs. McNair 4 hours and 10 minutes to get ready for her guests. That means she will have to start getting ready at 9:50 a.m.</p><p>More Accessible Version Solution:</p><p>It will take Mrs. McNair 3 hours and 10 minutes to get ready for her guests. That means she will have to start getting ready at 10:50 a.m.</p><p>More Challenging Version Solution:</p><p>It will take Mrs. McNair 4 hours and 45 minutes to get ready for her guests. That means she will have to start getting ready at 9:15 a.m.</p><p>Task-SpecificAssessmentNotes</p><p>General NotesNot only can you assess students problem-solving skills with this task, but you can also assess their application of time concepts and skills.</p><p>NoviceTheNovicewillshownounderstandingoftheneedtodetermineastartingtimeforpreparation.S/he will use little or no math reasoning and will demonstrate little understanding of concepts of time.</p><p>ApprenticeThe Apprentice will have an approach that would work but will make errors in computation or have flawsinreasoningthatleadtoanincorrectanswer.</p><p>PractitionerThe Practitioner will have a complete and accurate solution with all work shown and organized.</p><p>ExpertThe Expert will have the same qualities as that of a Practitioner but will demonstrate a greater understandingofconceptsoftime.S/hewillmakemathematicallyrelevantobservationsorwilldemonstrate other characteristics of good problem solving, such as verifying the correctness of the solution.</p></li></ul>