The Santillana (4th Grade Natural Sciences) series, particularly in its "repack" or "Edupack" formats, is designed to align with current educational standards like LOMLOE. These materials focus on a comprehensive exploration of the natural world through active learning and scientific investigation. Core Content & Units

The textbook typically organizes its content into several key areas of study that help nine and ten-year-olds build a scientific foundation: Life Sciences (The Study of Living Beings):

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