Objective

By the end of this lesson, the student will be able to count the difference between numbers represented by objects.

Materials and Prep

• Objects for counting (e.g. blocks, toys, buttons)

Activities

• Activity 1: Counting Objects

Ask the student to gather a set of objects. Then, have them count the objects and write down the number. Next, ask them to remove some objects from the set and count the remaining objects. Finally, guide them to determine the difference between the two counts.

• Activity 2: Number Line

Create a simple number line on a piece of paper, starting from 1 and ending at a number within the student's counting range. Have the student place objects on the number line to represent different numbers. Ask them to identify the difference between adjacent numbers on the number line.

Kindergarten Grade Talking Points

• "Today, we are going to learn how to count the difference between numbers using objects."
• "We will use different objects, like blocks or toys, to help us count."
• "First, we will gather a set of objects and count how many there are. Then, we will take away some objects and count the ones that are left."
• "We will write down the numbers and find out how many objects we took away."
• "Next, we will use a number line to help us understand the difference between numbers. We will place objects on the number line and see how far apart they are."
• "By the end of this lesson, you will be able to count the difference between numbers using objects and a number line."