Unit8-EverythingVaries

Unit8-EverythingVaries - E V E R Y T H I N G V A R I E S !...

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1 E V E R Y T H I N G V A R I E S ! UNIT 8
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2 Homepage Introduction Exercise 1: Recognizing Individuals as Unique Exercise 2: Matching Leaves Exercise 3: Using Math to Make Decisions about Variation Exercise 4: Matching Shells Exercise List continued
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3 Exercise 5: Making Sense of Variation: The Game Exercise 6: Finding Species Exercise 7: Mechanisms Exercise 8: Mystery Identification, Suggested Readings & Links Return to Homepage
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4 Introduction There are over 2 million named species of plants and animals on Earth and many scientists feel that the actual number of types of organisms is well over 5 million. To start with, we need to know what variation is. It means to be a little bit different from others or from some typical pattern. Organisms vary because: The Earth offers many different types of places to live: physical structures such as mountains and water bodies create habitat variation . Climate adds to the environmental variability offered by physical structure in habitats. Climate (the weather patterns different parts of the world experience over time) is influenced by the shape of the Earth and its pattern of rotation around the sun
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5 The Student Will… Learn the different methods scientists use to separate species by the characteristics that vary between them. Use both qualitative (observational) and quantitative (measurement) methods to make decisions about which organisms should be grouped together versus placed in different groups.
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6 Materials Container A 35 unique Leaves Container B 30 leaves each of two species Container C 31 mollusc shells with red dot on each Container D 30 mollusc shells with blue dot on each Container E Mystery Shell
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7 Objectives Exercise 1 helps students recognize the individual organism’s unique traits by testing your skills in committing a leaf to memory that will vary a lot from many of the leaves available but only slightly from some. Exercise 1. Recognizing individuals as unique.
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8 Level Science Standards Math Standards K K.1.2 1 1.1.2, 1.2.3, 1.5.1 2 2.1.2, 2.5.1 3 3.1.2, 3.5.1 3.1.3, 3.5.1 4 4.5.1 4.1.3, 4.4.1, 4.4.2, 4.5.1 5 5.5.1 5.1.3, 5.4.1, 5.4.2, 5.5.1, 5.5.3 6 6.1.2, 6.1.3, 6.4.1, 6.4.2, 6.5.1, 6.5.3 7 7.1.2, 7.1.3, 7.2.4, 7.4.1, 7.4.2, 7.5.1, 7.5.3 8 8.5.2 8.1.2, 8.1.3, 8.2.4, 8.4.1, 8.4.2, 8.5.1, 8.5.3 Gateway 5.3 1.7, 2.6, 2.10, 2.11, 4.1, 4.3, 4.4, 4.5, 5.1, 5.4 Biology II 6.1, 6.2, 6.3
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9 Directions 1st Run: Before discussion Locate the Container marked A, which holds 35 leaves from trees and shrubs that have been laminated. Each leaf has a unique number on its underside. The teacher will spread these out on the front table. Each student should select one leaf.
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Unit8-EverythingVaries - E V E R Y T H I N G V A R I E S !...

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