Mathematics

Intermediate

50 mins

Teacher/Student led

Learning Goals

Learning Outcomes

Lesson Files

+90 XP

Teacher-led from the board. Pupils do not need a device, but can follow on one.

What you need:
IWB/Projector/Large Screen

Tenths: The First Decimal Place

Learn what one tenth means, write it as both a fraction (1/10) and a decimal (0.1), and practise reading and shading tenths using visual strips and place-value language.

Warning: Your screen size is quite small for viewing this. Rotate your device into landscape mode if you can.

1 Getting Started
2 Watch and Notice
3 Try It Together
4 Shade the Bar in Your Copy
5 Class Challenge
6 What Did We Notice?
7 Four Tenths on the Blocks
8 What's Next
Pupil practice

Your turn

Your teacher is running this lesson on the board. Here is the part you can try yourself.

Your written work is on page 37

Fraction strips

1 - Getting Started ~4 mins

Here is one whole strip on the board, and it has been split into ten equal pieces. If we shared this one bar of chocolate fairly between ten people, how much would each person get? What could we call one of these ten equal pieces?

👇 Mark your steps as done as you complete them.

+5 XP

2 - Watch and Notice ~9 mins

The interactive shows rods in the tenths column. Ten rods make one whole, so each rod is one tenth. Watch how many rods there are and read it three ways: in words, as a fraction, and as a decimal. Notice where the decimal digit sits.

👇 Mark your steps as done as you complete them.

+10 XP

3 - Try It Together ~11 mins

Now we shade tenths together. The top strip is split into ten equal parts. I call out an amount, one of you shades that many parts, and we all say it two ways: as a fraction and as a decimal. Then press Reset for the next one.

Shade 0.1.
Shade 0.5. Now look at the half strip underneath. What do you notice?
Shade 0.8.
Shade all ten parts. What do ten tenths make?

Key point

A decimal counts the shaded tenths: 0.8 means eight of the ten equal parts.

Shade the tenths

+15 XP

4 - Shade the Bar in Your Copy ~2 mins

COPYBOOK MOMENT

In your maths copy, draw a bar split into ten equal parts. Shade four of them. Then write the amount two ways underneath: 4/10 and 0.4.

+10 XP

Pupil practice

Module 3 · Fractions and First Decimals Number

Lesson 39 · Tenths: The First Decimal Place

Download Activity Book page (PDF)

123learn · Online learning platform

Unlock the full learning experience

You're previewing this lesson. Get full access to this lesson and hundreds more — each one ready to teach, with interactive activities, printable resources and pupil progress tracking built in.

Hundreds of curriculum-aligned lessons

Interactive activities in every lesson

Printable resources & progress tracking

Get started

Copyright Notice
This lesson is copyright of 123Learn.ie 2017 - 2026. Unauthorised use, copying or distribution is not allowed.