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Lesson Plan

Solve metric mass word problems by converting from larger units to smaller units

teaches Common Core State Standards CCSS.Math.Content.4.MD.A.2
teaches Common Core State Standards CCSS.Math.Practice.MP3
teaches Common Core State Standards CCSS.Math.Practice.MP7
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Big Ideas: When solving mass measurement word problems, measurement units need to be converted to the same unit before calculating. We must look at the number and the unit when we are comparing measurements. This lesson builds on students’ previous work with mass in grade three. In this task, students explore metric mass conversions through problem solving. Students will convert from a larger unit to a smaller unit to determine how many loaves of each type of bread will fit in one box. Students will discover they must convert to the same unit before making calculations. The mathematical concepts in this lesson builds towards students’ future work with measurement problem solving in grade 5. Vocabulary: gram, kilogram, mass, weight Special Materials: Formative Assessment Handout (optional-see Supplementary Resources at end of lesson plan)
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