In a previous lesson, students were introduced to story problems with questions. In this lesson, students represent and solve the story problems. They may use objects, math tools, or drawings. Students explain how both objects and drawings show what is happening in a story problem, which will be useful as students create their own representations and interpret other representations in future lessons.
Representation
MLR8
Comprehend the notation “0” represents no objects.
Count to answer “how many?” questions about as many as 20 things arranged in a line, a rectangular array, or a circle, or as many as 10 things in a scattered configuration; given a number from 1–20, count out that many objects.
Represent addition and subtraction with objects, fingers, mental images, drawingsDrawings need not show details, but should show the mathematics in the problem. (This applies wherever drawings are mentioned in the Standards.), sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations.