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Department of Mathematics and Science Grade 2 Big Idea 16: Heredity and Reproduction TOPIC XIII: The Life Cycles of Plants and Animals.

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Presentation on theme: "Department of Mathematics and Science Grade 2 Big Idea 16: Heredity and Reproduction TOPIC XIII: The Life Cycles of Plants and Animals."— Presentation transcript:

1 Department of Mathematics and Science Grade 2 Big Idea 16: Heredity and Reproduction TOPIC XIII: The Life Cycles of Plants and Animals

2 Department of Mathematics and Science Benchmarks Big Idea 16: Heredity and Reproduction SC.2.L.16.1 Observe and describe major stages in the life cycles of plants and animals, including beans and butterflies. Cognitive Complexity: Moderate Big Idea 1:The Practice of Science SC.2.N.1.2 Compare the observations made by different groups using the same tools. Cognitive Complexity: Moderate SC.2.N.1.5 Distinguish between empirical observation (what you see, hear, feel, smell, or taste) and ideas or inferences (what you think). Cognitive Complexity: Moderate

3 Department of Mathematics and Science Lesson Objectives: By the end of this lesson, students should be able to: Observe and identify major parts of a seed. Observe the germination and growth of a bean seed. Observe and measure the bean plant seedling as it grows and changes into an adult plant in terms of stem growth and number of leaves. Explain the major stages of a flowering plant and how it grows and reproduces. Identifies and explains the life cycle of a butterfly, frog, and mealworm. Identifies and explains the life cycle of a bean and peanut. Explain the major stages in an animal’s life, how it grows, and reproduces. Key Vocabulary: life cycle, stages, egg, larva, caterpillar, pupa, adult, young, froglet, germination, temperature, seed, seed coat, food storage, embryo, seedling, flower, fruit

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5 Plants have different life spans, but most leave behind seeds for new life

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7 Check your work!

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9 Seed Germination What does a seed need to grow? Seeds need: - water - air - proper temperature

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11 Animal Life Cycles

12 Department of Mathematics and Science What is a life cycle? Every living thing grows through its own life cycle. They give birth to offspring like themselves, who grow, mature, reproduce, and then finally die. Let’s learn more about the life cycles of living things.

13 Department of Mathematics and Science Life Cycles Hunt: Evidence of Life Cycles around You Let’s look at a organisms are at different stages in their life cycle. By observing their current stage, predictions can be made about their next stage of development.

14 Department of Mathematics and Science Life CyclesLife Cycles of Insects Animals that change their appearance during growth undergo metamorphosis. That's just a long word meaning "to change shape.“ The change that occurs when an insect egg hatches and grows into an adult is called metamorphosis, meaning to change in form.metamorphosis

15 Department of Mathematics and Science Insect Life Cycle Most insects go through metamorphosis, or changing form, in four stages of development. During the larva stages, insects eat almost constantly. Adult insects lay eggs hidden in various places for protection.

16 Department of Mathematics and Science Let’s Explore Life CyclesLife Cycles What is the same about the life cycle of the lily and the alligator?

17 Department of Mathematics and Science roundandround.html

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