By the end of the lesson students will be able to join two groups of objects, find the total quantity after joining two groups of objects, explain their process of joining two groups of objects to find the quantity. The teacher asks students, "What do you see on the card?" Possible responses: I see ducks. The teacher says: Let's see if students can come up with a story problem for this picture for you to solve. The teacher will make up a story to go with the picture card, using the same problem structure, such as: There are 3 ducks on the water and 1 duck on the shore.