How Legs Help Animals Move — Reading Comprehension

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NGSS 4-LS1-1

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This engaging 250-word reading passage introduces Grade 4 students to the concept of how animal legs function as external structures that support movement. Aligned with NGSS standard 4-LS1-1, the passage explains how legs are specialized body parts that help animals walk, run, jump, climb, or swim. Students discover that the number, length, and shape of legs vary across different animals and match how each animal moves in its environment. Real-world examples include cheetahs with long legs for speed, frogs with powerful back legs for jumping, ducks with webbed feet for swimming, and mountain goats with special hooves for climbing. The passage uses simple, age-appropriate language and includes bold key vocabulary terms defined in context. Audio integration supports diverse learners by providing read-aloud functionality. Supplementary activities include multiple-choice comprehension questions, writing prompts, and graphic organizers that help students analyze the relationship between leg structure and function. This foundational lesson prepares students for hands-on investigations and class discussions about animal adaptations and how body structures help organisms survive in their habitats.

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