Unit 6: Fractions and Decimals

Day 18 of 30

Place decimals on a number line

K-2Mathematics

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Learning Objective

I can explore place decimals on a number line.

Today's Lesson

Today we will learn about place decimals on a number line. Math helps us solve problems and understand the world around us.

A decimal is another way to show parts of a whole, using a decimal point. The digits to the right of the decimal point show tenths, hundredths, thousandths, and so on. For example, 0.5 means 5 tenths (which equals 1/2). The number 3.25 means 3 whole ones plus 2 tenths plus 5 hundredths. Decimals are useful for money, measurements, and precise calculations.

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
Number

A symbol that tells us how many

Problem

A question we need to solve

Activities
Instructions
1. Use objects or pictures to explore place decimals on a number line. 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 place decimals on a number line. Keep sessions short (10-15 minutes) and incorporate movement or songs when possible.

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