Solving Story Problems

First graders have been using addition and subtraction to solve different types of story problems using missing addends.  Today we solved: Some ducks were in the pond.  Three ducks left the pond and now there are 2 left.  How many ducks were in the pond at the start?  Students need to both solve the problem, and show their thinking by creating a math picture, equation, or number bond.  Here are some examples of how students solved other problems at math.