3rd Grade Science(17 Units, 84 Lessons)
Big Idea: Just as scientists classify organisms based on specific criteria, during this introductory lesson on classifying, students classify seashells by the criteria they have agreed upon collaboratively.
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Big Idea: Just as scientists re-evaluate data based on new criteria, during this followup lesson on classifying, students classify seashells by using print and electronic media to collaboratively revise their original classification data .
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