UNIT X UNIT 7 | 273 FORMATIVE ASSESSMENT DIFFERENTIATED INSTRUCTION Scaffold Students may need support to discuss ideas in complete sentences during the discussion. For Activity C, provide these sentence frames: Waste is compacted before it’s put in a landfill to _____. We need to reduce the amount of waste we have because _____. For Activity D, provide these sentence frames: The _____ in my lunch are biodegradable. The school can reduce waste by _____. Amplify After students complete Activity D, have them plan a poster with a partner to show three ways the school can reduce waste. Talk and write: Managing waste Ask and answer in pairs: How can we reduce waste? Write the definition of biodegradable. B Define vocabulary Draw attention to the words from the reading in the left column and the definitions in the right column. Check comprehension of the phrasal verbs in the definitions: made smaller, pushing together, broken down, making . . . into, get rid of, and throw away. Use gestures and synonyms as needed. Have students work independently to match the words to their definitions. Tell them to refer to the text as needed. Then ask volunteers to share their answers. ANSWERS 1. b; 2. d; 3. f; 4. a; 5. c; 6. e C Discuss reasons Ask a volunteer to read the questions aloud. Point out that the questions with Why ask for purposes or reasons. Have students discuss the questions in pairs. Then ask them to share their answers with the class. ANSWERS Sample answers: Waste is compacted before it’s put in a landfill to save space. We need to reduce the amount of waste we have because there isn’t enough space in the landfills. Many items are not biodegradable. D • Make connection Ask a volunteer to read the questions aloud. Point out that the first question is asking for students to categorize parts of their lunch, and the second question is asking for a solution to a problem. Have students discuss the questions with a partner. Then invite them to share answers with the class. • Home-School Connection Assign students to ask their family members this question: How can we reduce waste at home? Allow them to use their home language if needed. ANSWERS Sample answers: The sandwich, carrots, and apples in my lunch are biodegradable. The school can reduce waste by starting a compost pile for leftover food. We can set up recycling stations for plastic bottles and milk cartons. Practice Book p. 148 Assessment Program p. 128 COMMUNICATE PRACTICE B Use the vocabulary Match the words with their meanings. 1. waste a. a place in the earth to put trash 2. biodegradable b. garbage, things we do not use 3. dispose c. made smaller by pushing together 4. landfill d. able to be slowly broken down and destroyed 5. compacted e. making trash into something new 6. recycling f. get rid of, throw away C Discuss Why is waste compacted before it’s put in a landfill? Why do we need to reduce the amount of waste we have? D Making connections Which part of your lunch is biodegradable? How can your school reduce waste? 273 UNIT 7 UNIT 7 / CONNECT TO SCIENCE
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