create their own story problems;
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Addition and subtraction should be taught concurrently in order to develop understanding of the inverse relationship.
create their own story problems; and
Instant recognition of the amount in a set of objects (subitize) that are arranged in a familiar pattern such as the dots on number cubes; and
Students should experience a variety of problem types related to addition and subtraction.
Model and solve various types of story and picture problems using 10 or fewer concrete objects. (Types of problems should include joining, separating, and part-part-whole scenarios.)