Physics, Chapter 11, Section 1 Completed

Distance and Displacement, pp. 328–331

11.1.1 Identify frames of reference and describe how they are usedto measure motion.

11.1.2 Identify appropriate SI units for measuring distances. 11.1.3 Distinguish between distance and displacement. 11.1.4 Calculate displacement using vector addition.

Vocabulary: frame of reference, relative motion, distance, vector, resultant vector

Technology: overhead projector, computerPacing: 45 minutes

National StandardsA-1, A-2, B-4

State StandardsSC.C.1.4, SC.C.1.4.1

1.FOCUS (5 minutes) Targeted Resources

Build Vocabulary: Vocabulary Knowledge Rating ChartBefore reading the section, have students make and fill out a chart with fourcolumns using the following headings: Term, Can Define or Use It, Have Heard or Seen It, and Don’t Know. L2

Teacher's Edition: Section 11.1

Transparency 152: Chapter 11 Pretest L2

Transparency 154: Interest Grabber 11.1 L2

Transparency 155: Reading Strategy 11.1 L2

2.INSTRUCT (30 minutes) Targeted Resources

Use Visuals: Figure 1Ask students to describe the motion of the girl in the butterfly’s frame of reference. Ask them to describe the motion of the butterfly in the butterfly’s frame of reference. Ask which one is “really” moving, the butterfly or the girl.L1

Build Reading Literacy: Monitor Your UnderstandingAfter students read page 329, have them write down the main ideas in the passage. Ask them if they had any trouble reading the passage and why. Then, have students come up with strategies to improve their understanding. L1

Teacher Demo: Frames of ReferenceToss a tennis ball in different positions to show students how motion can appear differently in different frames of reference. L2

Quick Lab: Comparing Distance and Displacement Students will draw a path on graph paper and use a ruler to distinguish between distance and displacement. L2

Build Science Skills: MeasuringHave students use a map of the city or area to measure the distance from their homes to the school. Then, using the odometer, have them determine the distance between home and school as they travel in a car. Have students compare the straight-line distance on the map to the distance traveled in a car. L2

Transparency 156: Figure 3: Distance: Displacements Along a Line L2

RSW Section 11.1 L1

RSW ATE Section 11.1 L1

Links on comparing frames of reference: ccn-2111 L2

3.ASSESS (10 minutes) Targeted Resources

Reteach Chapter 11 Self-grading

Use Figure 4 to reteach the difference between displacement and distance traveled. L1

Evaluate UnderstandingAsk students to write a paragraph describing a situation in which the same motion appears differently from different frames of reference. L2

assessment

Web-based interactive textbook with assessment