UNIT X UNIT 7 | 255 DIFFERENTIATED INSTRUCTION Scaffold • To help students understand how the grasses and animals have adapted, it may help to display images or sketches of what is happening. For example, for the first paragraph on page 255, you can display an image or sketch of grasses, their underground roots, and water deep in the ground. • To help students answer the Check In questions, provide these sentence frames: Tropical grasslands are more _____ than temperate grasslands. Tropical grasslands are _____, but temperate grasslands are _____. A good sense of smell can help the bison _____. Amplify Have students research other animals that live in the grassland biome and the adaptations they have made. Have them share what they find out with the class. Reading • Use visuals to support comprehension Read the text on page 255 aloud, stopping after each sentence. Check comprehension of the expressions blowing away, growing thicker, and sense of smell, using gestures or examples as needed. Then ask students to close their eyes while you play the audio for page 255 again. Say: While you listen, imagine you see how the plants and animals adapt to the environment. After listening, ask students to share whether using visualization helped their understanding. • Identify topic sentences and relevant details Point out the first paragraph on page 255. Say: There are three sentences in this paragraph. Which sentence is the topic sentence, or the sentence with the central idea? (the first sentence) What is the central idea? (The grasses have adapted well to their environment.) Which relevant detail is in the second sentence? (Their long roots get water from deep in the ground during dry periods.) Which relevant detail is in the third sentence? (The roots keep the soil from blowing away when there are strong winds.) • Identify pronoun referents Point out the second paragraph on page 255. Ask students to underline the phrase Many animals in the first sentence. Ask: What pronoun can we use to replace many animals? (they) What possessive adjective can we use to replace many animals? (their) Ask students to find and circle examples of they and their in the paragraph. Point out that writers use these pronouns and possessive adjectives to refer to a noun without repeating it. Check In Ask and answer questions Preview the questions with students. Give students time to reread the text, ask each other the questions, and formulate answers. Then discuss answers as a class. ANSWERS 1. Tropical grasslands are warmer than temperate grasslands. Temperate grasslands are sometimes moist and humid, but they can be semiarid. Tropical grasslands have a dry season and a rainy season. 2. A good sense of smell can help the bison find grass under the snow. PRACTICE a bison in grassland in the winter The grasses have adapted well to their environment. Their long roots get water from deep in the ground during dry periods. The roots also keep the soil from blowing away when there are strong winds. Many animals eat these grasses. They often migrate to find grass. Animals in temperate grasslands make adaptations for different seasons. Their fur grows thicker in the winter. Bison and other animals have a good sense of smell, and they use it to find grass under the snow. CHECK IN 1. Comprehension How are tropical grasslands different from temperate grasslands? 2. Cause and effect How does it help the bison to have a good sense of smell? 255 UNIT 7 Biomes of the World UNIT 7 / READING
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