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发表于2024-11-10
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NATIONAL STANDARDS: Grades K-4 National Science Standards- Science as Inquiry: I- Human senses need assistance- Science and Technology: V- People have always invented tools and techniques to solve problems- Tools help scientists make better observationsGrades K-4 National Social Studies Standards- Science, Technology, and Society: VIII- Identify and describe ways in which science and technology have changed society
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You Can Use a Magnifying Glass 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024