This teacher introduces the class to a new kind of problem: How Many of Each?
Students choose which of three estimates is the closest estimate for a given multiplication or division problem, and explain their thinking.
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Students discuss ways they might use their “plus/minus rule” to add 623 249.
One student shares his strategy for solving 69 87.
Students compare two strategies for solving 145 226, one of which is the US standard algorithm.

The investigations math Curriculum

Each grade is made up of 8 curriculum units, an Implementation Guide, and a Content Guide. Also available for teachers: a Spanish Companion and an Assessment Sourcebook specific to the grade. Each classroom needs the manipulatives and cards used in that grade, and one Student Activity Book per student. The curriculum can be taught without access to technology, entirely digitally, math investigations grade 3 pdf

__investigations math__One student discusses her strategy for solving a story problem with her teacher.The investigations math Curriculum

Each grade is made up of 8 curriculum units, an Implementation Guide, and a Content Guide. Also available for teachers: a Spanish Companion and an Assessment Sourcebook specific to the grade. Each classroom needs the manipulatives and cards used in that grade, and one Student Activity Book per student. The curriculum can be taught without access to technology, entirely digitally, math investigations grade 3 pdf