Name: Date: Period/Class: Newton and Copernicus: Lesson #29b 1c: Students know how to solve problems involving distance, time, and average speed. Directions: When you have correctly assembled the nine panels your teacher will give you this copy of lesson 29. Answer the questions on the back first, then… Read through the strip again. Write out what Copernicus would say when explaining what he would do to measure Newton’s speed. Copy your answer neatly in the empty text bubble. A Newton and Copernicus Companion: Copyright August 2007, J.C. Olson. Name: Date: Period/Class: Newton and Copernicus: Lesson #29a 1c: Students know how to solve problems involving distance, time, and average speed. 1: Why does Newton choose the “zero end” of the meter stick for a reference point? 2: What two tools of measurement did Newton and Copernicus use in their experiment? Did they use them correctly? 3: Why did Copernicus say, “Ha, I was hardly trying”? 4: Newton used the formula, S = d/t. Rewrite the formula using the words represented by each of the variables. 5: Check Newton’s calculations using the speed formula. (Show your work) Did he find the correct speed? Why did he use cm/second (centimeters per second) instead of meters? 8 100 A Newton and Copernicus Companion: Copyright August 2007, J.C. Olson. Newton and Copernicus: Lesson #29 LESSON GUIDE: Vocabulary: calculations, formula, solve Academic Vocabulary: reference point, meter stick, experiment, meter, centimeter, speed formula After the group activity, give each student a copy of lesson #29a and #29b. For #29a A: Have students read the text silently and carefully observe the background of the drawing to look for supporting information. (V) B: Have students read through the questions and circle the number of each question they feel they would be able to respond to. Pair/Share. C: Give each student about half a minute to review with their partner what they discussed in their group activity. (A) D: After the pair discusses questions 1-5, each student should draw a box around the number (or circled number) of each question they would be able to respond to. E: Select sets of volunteers to act out the strip in front of the class using a timer, meter stick, and rat puppets (or cut outs) F: Students individually write out their responses to questions 1-5. For #29b In the final panel, students should have Copernicus explain what he would do to find Newton’s speed. Students should write the text on a separate sheet then copy it neatly into the bubble. (This can be used as an assessment). Have them write assuming that Copernicus understands what happened. (Do not accept wrong or confused responses). Answers for 1-5 1: Since Copernicus is walking a distance of 100cm, he should start at the zero end and walk to 100. He is moving away from the reference point, so he will be in motion. 2: A meter stick for distance, a timer for time. They are used correctly. 3: He is hinting that he could have gone faster. (It is a human response) 4: Speed = distance/time 5: 100/8 = 12.5. His calculations are correct (12.5 cm/s). Centimeters are the best unit of measurement for a distance of this length. Had he used meters, the response would have been .125 meters per second, which is not as easy to visualize. Use #29b for the key to check the group work. A Newton and Copernicus Companion: Copyright August 2007, J.C. Olson.