## Order Whole Numbers to 100

Once the children are comfortable putting numbers in order, introduce ordering numbers on the number line.

Materials: large or small cards numbered 0 – 10 and floor or wall number line

Preparation: Prepare a number line on the floor or wall. Place the numbers 0 and 10 on the number line. Put the other number cards face-up in random order in the chalk tray or on a table.

Prerequisite Skills and Concepts: Understand order and count from 0 – 10.

You may choose to do this activity by having the children stand in place on the floor number line holding the large numbers, or you can place the smaller numbers on the wall number line.

• Say: We put number cards in order in our first lesson. Today we are going to use a number line to help us put the cards in order.

• Introduce children to the number line. Point out the numbers that you placed on it and the short vertical lines in-between the numbers.

• Ask: How can we order numbers on this line?
Elicit from children that they can use the short lines on the number line to count the missing numbers between the numbers already on the line.

• Say: I would like you to start at 0 and count to 10 as I point to the short lines on the number line. (Count.)

• Ask: Who can find the number that follows the zero?
Have a child find the number 1 card and place it on the number line.

• Continue placing the numbers on the line. Then try placing the numbers counting backward.

• Say: This time I would like you to count backward from 10 to 0 while I point to the short lines.

• Ask: Who can find the number that comes before 10?
Have a child find the number card 9 and place it on the number line.

• Continue in the same manner until all numbers are placed. Then remove all but 0, 5, and 10 and put the number cards facedown on the table or in the chalk tray.

• Say: This time you are going to choose a number and find it's place on the number line.

• Invite a volunteer to choose a number and find where the number should be placed.

• Ask questions such as, "How can you find where the number belongs? Is there another way to tell where to place the number? Does your number come before or after _____ (number)? How do you know?".

• Continue this activity until children are skilled at using the number line. Also adapt this lesson for larger numbers when you are ready to introduce them to the children.

Compare Whole Numbers to 100

Order Whole Numbers to 100

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