Unit 3: Number Sense and Place Value

Day 18 of 30

Order two-digit numbers

K-2Mathematics

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Learning Objective

I can order two-digit numbers.

Today's Lesson

Today we will learn how to order two-digit numbers. Math helps us solve problems and understand the world around us.

Ordering numbers means putting them in order from smallest to largest (or largest to smallest). To order numbers, compare them two at a time and arrange them. For example, to order 5, 2, 8, 3, think: 2 is smallest, then 3, then 5, then 8. So the order from smallest to largest is: 2, 3, 5, 8. Ordering helps us see patterns and understand how numbers relate to each other. Practice by ordering numbers on a number line!

Let's break this down step by step so it's easy to understand. Follow along with the examples, and don't worry if it takes some practice to get the hang of it!

Remember: Making mistakes is part of learning. If something is tricky, try again, look at the examples, or ask for help.

Key Terms
Problem

A question we need to solve

Solution

The answer to a problem

Activities
Instructions
1. Use objects or pictures to explore order two-digit numbers. 2. Try the examples together. 3. Solve practice problems. 4. Check your work.
Materials Needed
  • Counters or objects
  • Pencil
  • Practice sheet
Practice Problems
1

Count the objects: 🍎🍎🍎🍎🍎 How many apples?

Hint: Point to each apple as you count.
2

What number comes after 7?

Hint: Count: 6, 7, ___
3

Count by 2s: 2, 4, 6, ___, ___

Hint: Add 2 each time.

Teaching Tip

For younger learners: Use concrete objects and hands-on activities when teaching order two-digit numbers. Keep sessions short (10-15 minutes) and incorporate movement or songs when possible.

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