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Grade 3. Over the module's 15 lessons, students explore variation of traits in individuals, patterns of life cycles, and how the environment can affect expression of traits. Module materials are available as a 1-use module (item #516801), 1-use refurbishment set (item #516804), 3-use module (item #516801U3), 3-use refurbishment set (item #516804U3), and student reader (item #516805, #516805A, #516806, #516806A, or #516805ASP). Select the 1- or 3-Use Module below to view the module overview.

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Grade 3. Over the module's 15 lessons, students explore variation of traits in individuals, patterns of life cycles, and how the environment can affect expression of traits. As a final science challenge, students conduct a research project involving Trinidadian guppies to determine whether a trait in the guppies is primarily a result of inheritance or an environmental factor. Module materials are available as a 1-use module (item #516801), 1-use refurbishment set (item #516804), 3-use module (item #516801U3), 3-use refurbishment set (item #516804U3), student activity guide (item #516803 or #516803SP), student reader (item #516805, #516805A, #516806, #516806A, or #516805ASP), and Spanish components bundle (item #516825). Select the 1- or 3-Use Module above to view the complete module overview.