Numbers in order to 10

General

Students learn to place the numbers from 1 to 10 in order and know when an amount is more or less than a given quantity as well as determining most and least.

Standards

K.CC.C.6
K.CC.C.7

Introduction

Ask a few students to stand at the front of the class and divide them into groups. The rest of the class must say which group has more and which has less. To check that they understand, show the example of the horses on the interactive whiteboard. Drag more horses to the second box.

Development

Show a number of quantities on the interactive whiteboard and say that you don't always have to count to know which amount is the most or least. Sometimes you just see it right away. If you don't see it right away, count the quantities. Use the number line to 10. Using the number line, you can determine which number is more and which number is less. You can use different ways of counting. Sometimes you can use skip counting in 2s, or in 5s if the objects are arranged in 2s or 5s. It is easier to count that way and more difficult to lose track, and when you do, it is easier to remember where you were. Practice as a class with putting amounts in order from least to most and say that you can count in different ways.

To check that students understand ordering numbers to 10 you can ask the following questions:
- How do you order numbers?
- How do you know which number is the least?
- How do you know which number is the most?
- What can you use to help determine the order of the amounts?

Guided practice

Students first practice ordering numbers with objects in 2s and in 5s. Then they have to order objects in a row.

Closing

Discuss with students that it is important to be able to place amounts in the correct order so you know who has the most and least of something like marbles. Check that students know that it is possible to see most and least without counting. If they can't see it right away, they need to count. They can use the number line as a guide to help determine which number is more or less. TO check that students understand, there are a few more exercises on the interactive whiteboard. The students must complete a row of least to most sweaters, dragging more sweaters to the next box. They must also place objects in order from least to most.

Teaching tips

Students who have difficulty with ordering numbers to 10 can practice using a number line. They can be further supported by the use of manipulatives or blocks.