Objective

By the end of this lesson, you will be able to complete number sentences involving addition and subtraction by finding missing values.

Materials and Prep

• Pencil and paper
• Basic understanding of addition and subtraction

Activities

• Create your own number sentences with missing values. For example, 5 + ___ = 12.

• Draw pictures to represent the number sentences to help you visualize the problem.

• Play a game where you have to find the missing values in number sentences before time runs out.

Talking Points

• "Let's solve this together. If I have 8 apples and I eat 3, how many apples do I have left?"

• "When we see a blank space in a number sentence, it means we need to find the missing value to make the sentence true."

• "Remember, addition means putting things together and subtraction means taking things away."

• "Drawing pictures can help us understand the number sentences better. Let's draw some to solve our problems."