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It's Alive–Atlantic Teacher's Guide 3 Lesson Activate Getting to Know Living Things Student Book pages 6–7 Content Background In this lesson: Children use the information gained in previous lessons as they make observations on a nature walk and decide which of the things they see are living things. Outcomes In this lesson children work together to create a definition for a living thing based on their findings from the Exploration. Children will also have opportunities to: • make and record relevant observations and measurements about animals and plants, using written language, pictures, and charts (201-5) Assessment • Listen to children as they discuss living and non-living things in Activate, and as they share their findings and develop a definition of a living thing in Apply. Do children identify similarities and differences between living and non-living things, and between plants and animals? Do they use the observations from the Exploration to modify or refine their explanation of living and nonliving things? Meet briefly with second language learners, struggling learners, and/or children who were very quiet during the discussions, and have them explain their Science Journal entries and describe the differences between living and non-living things orally. • Review the children’s Science Journals and listen to children’s responses to the Apply questions. Do their Journal entries show a variety of living things, including both plants and animals? How well are children able to use their understanding of living and nonliving things to identify a living thing? How well were children able to predict what living things they would see? Were there predictions correct? Were they able to compare what they found to their predictions? (201-5) • Collect Reproducible 3: What is Alive? How well are children able to identify and group living and non-living things? Getting Organized GettingMaterials: a plant (could be a weed or house plant), an animal, a rock (or other nonliving thing), clipboards, paper, pencils Suggested Grouping: class, individual Time Required: Activate 25-30 minutes; Explore 30-45 minutes; Apply 20-25 minutes Advance Preparation: For the Activate section, arrange to borrow a plant or an animal from another classroom if necessary. Find a location near the school where the children would be likely to observe a variety of plants and animals. B iologists define something as living if it is capable of all eight of the life processes: getting food, respiration, excretion, growth and development, movement, response, secretion, and reproduction. This is what such diverse things as trees, sharks, onions, and ants have in common. Another characteristic of living things is that they eventually die. Many children are aware of the mortality of living things by the time they reach school age. People used to classify living things as belonging to either the plant or the animal kingdom. Exceptions to rules within this two-kingdom classification (such as mushrooms, which used to be referred to as plants lacking chlorophyll) led to a more complete five-kingdom classification. They are animals, plants, fungi (mushrooms, molds, yeast), monera (bacteria), and protista (amoebae, most algae). Of the five kingdoms, plants and animals are the most useful categories for young children because these are the categories to which most of the living things they see belong. Lesson Vocabulary animal: an animal is a living thing that is not a plant and can move about freely. living thing: a living thing is a plant or an animal. It needs food, air, and water to grow. Plants also need sunlight. Display a plant, an animal, and a rock or other non-living thing (or pictures if the real things are unavailable). Encourage children to think about what they have discovered in the first two lessons. On chart paper, print the headings “plant,” “animal,” and “rock.” Discuss similarities and differences among the things. To help generate ideas, ask: How would you describe these things? How are these things the same? How are they different? What do these things do? Which two things have the most in common? What makes the plant and the animal the most alike? Can you think of a way to describe both the plant and the animal? If the terms “living” or “alive” do not come up during the questioning, help the children see that both the plant and the animal are living things, whereas the rock is a non-living thing. Together, look at the illustrated scene on pages 6 and 7 of the Student Book. Encourage the children to find the non-living things in the illustration. How did they decide that these things are not alive? Now ask the children to find the living things, and to explain the reasons behind their decisions. Make a class list of the living things. Some living things, such as bacteria and certain fungi, are so small you cannot see them using your eyes alone. plant: a plant is a living thing that is not an animal and cannot move about by itself. 26 27 Lesson 3:What Is a Living Thing? Lesson 3:What Is a Living Thing? E x p l o re Apply Living Things Around You Discussing Their Findings Extending Learning Encourage a class discussion of the living things children have seen. Ask children if there are any other living things in their classroom, or in the rest of the school. Explain to the class that they will be going outside to look for living things. Ask children to predict what living things they will see. Record their predictions. Encourage children to discuss what they found on the walk. Ask several children to show their notes and drawings from the Exploration. Compile a class list of the living things observed by the children. Compare what they found with their predictions. Then ask: Looking Closer How did you decide which were living things? Can you name some of the living things you observed on the walk? Find living things. 1. Make sure each child has a pencil and a clipboard with paper before going outside. Ask children to look for as many different living things as they can find. Encourage them to think about why they decided that these are living things. Make sure they stay with the group throughout the walk. 2. Have each child record the living things using words and/or pictures. Troubleshooting Explain to children that they will be using their eyes and ears to find living things.Remind them not to harm living things. Safety Caution children not to pick up things they may see on the ground, especially garbage. Exploration Results Children’s notes and drawings should show a variety of living things, including both plants and animals. This shows that the children are beginning to understand some of the criteria used in identifying living things. How were they different from the non-living things you saw? Define a Living Thing As a class, begin to develop a definition of a living thing. Children can draw on everything they have discovered so far. Discuss their ideas and, together, decide what should be included in the definition. (This may be a good opportunity, if it has not come up before, to have a discussion with the children about whether people are animals.) Record the definition on chart paper. Children should copy it into their Science Journals. Explain that the definition can be revised as necessary throughout the unit. After discussing the THINK! question, you may want to look more closely at some of the other things in the illustration in the Student Book and invite discussion about whether or not they are alive. For example, the flowers in the vase can remain alive for several days if they are in water (the green parts can even carry on photosynthesis), but they cannot continue living for very long. Leaves are alive as long as they are green or the yellow and orange colours seen in the fall. Once they have turned brown or have fallen off, they are no longer alive. The children may be interested to know that the yeast used in making bread is a living thing. (It consists mainly of the cells of very small fungi.) Now would be a good time to hand out Reproducible 3: What Is Alive? for children to complete. (Answers: living—flower, bush, dog, shark, boy; non-living—log, banana, ball, brick; once alive— log, banana) Integrating Science Math: Do a Venn Diagram Revisit the illustration on pages 6 and 7 of the Student Book, and use it to complete a Venn diagram of living and non-living things, and the things that fall into both categories, where the two circles overlap. For example, the leaves on the trees are living, but the leaves the girl is using to make a picture are non-living. More Science: Create a Living Display If you do not already have living things in your classroom, you could arrange to borrow animals or plants from another classroom, or from one of the children’s homes (for example, hamsters or fish). Check for student allergies before bringing a pet into the classroom. Make sure you receive complete instructions on how to care for the living things, and that you share this information with the children. Caring for and observing the living things will increase the relevance of the unit for the children. Think! Is an apple alive? While on the tree, an apple is part of a living thing,but once it is picked,decomposers slowly begin to break down the apple and it is no longer alive. 28 29 Lesson 3:What Is a Living Thing? Lesson 3:What Is a Living Thing? 3 Name __________________________________________ Date _____________________________________ What Is Alive? Put a circle around the living things. Put a line under the non-living things. Colour the non-living things that were once alive. 30 Lesson 3:What Is a Living Thing? Copyright © 2002 Scholastic Canada Ltd.This page may be reproduced for classroom use by the purchasing school.