Expression Pass out square of wax paper and Resource Sheet 5: angles based on the degree of the angle Angle Worksheet (which displays 3 circles ¼, 1/8, SMP 5: Use appropriate tools strategically Multiple Means for – 1/16). Engagement Students understand that a protractor is Using the beginning directions on Resource Sheet 6: Key Questions the appropriate tool to measure angles Making a Wax Paper Protractor, ask students to fold the Formative Assessment and the unit of measurement is degrees wax paper in half and then in half again. Summary SMP 6: Attend to precision Once students have folded the wax paper twice, making Students use appropriate symbols () and fourths, have students lay their on the paper unit of measurement (degrees) “protractor” circle showing fourths on Resource Sheet 5: Angle SMP 7: Look for and make use of structure Worksheet. Students recognize that a 45 is half of a Model how to line the vertex up and rotate it around the 90 angle and so on. circle 4 times to complete the circle. Students recognize that a 90 angle is still Have students verbalize that it is fourths because there a 90 angle regardless of its orientation. are four sections and the protractor needs to be rotated 4 times to cover the four sections. Have students fold the wax paper again and repeat step 3 for eighths, as stated on Resource Sheet 6. Have students fold the wax paper again and repeat step 3 for sixteenths. Discuss: Could students continue to fold the wax paper, making smaller and smaller “wedges”? (Theoretically, with the wax paper because the wedges yes. They can’t become too small to fold anymore.) Ask: How many in a full circle? (360) “wedges” How do you know? (360 in a circle) What is the measure of each of these wedges? (1) Closure Materials Needed: SMP 3: Construct viable arguments and critique the reasoning of others Resource Sheet 7: Exit Ticket Students justify their reasoning when Wrap Up: discussing types of angles in the real
Expression Multiple Means for Engagement Key Questions Formative Assessment Summary Pass out square of wax paper and Resource Sheet 5: Angle Worksheet (which displays 3 circles – ¼, 1/8, 1/16). Using the beginning directions on Resource Sheet 6: Making a Wax Paper Protractor, ask students to fold the wax paper in half and then in half again. Once students have folded the wax paper twice, making fourths, have students lay their “protractor” on the paper circle showing fourths on Resource Sheet 5: Angle Worksheet. Model how to line the vertex up and rotate it around the circle 4 times to complete the circle. Have students verbalize that it is fourths because there are four sections and the protractor needs to be rotated 4 times to cover the four sections. Have students fold the wax paper again and repeat step 3 for eighths, as stated on Resource Sheet 6. Have students fold the wax paper again and repeat step 3 for sixteenths. Discuss: Could students continue to fold the wax paper, making smaller and smaller “wedges”? (Theoretically, yes. They can’t with the wax paper because the wedges become too small to fold anymore.) Ask: How many “wedges” in a full circle? (360) How do you know? (360 in a circle) What is the measure of each of these wedges? (1) angles based on the degree of the angle SMP 5: Use appropriate tools strategically Students understand that a protractor is the appropriate tool to measure angles and the unit of measurement is degrees SMP 6: Attend to precision Students use appropriate symbols () and unit of measurement (degrees) SMP 7: Look for and make use of structure Students recognize that a 45 is half of a 90 angle and so on. Students recognize that a 90 angle is still a 90 angle regardless of its orientation. Closure Materials Needed: Resource Sheet 7: Exit Ticket Wrap Up: SMP 3: Construct viable arguments and critique the reasoning of others Students justify their reasoning when discussing types of angles in the real