Mathematics
Intermediate
50 mins
Teacher/Student led
+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.

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    Fraction strips
    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?

    2 - Watch and Notice ~9 mins

    The interactive shows one whole flat split into ten equal rods, with some shaded. Watch how many rods are shaded and read it three ways: in words, as a fraction, and as a decimal. Notice where the decimal digit sits.

    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.

    1. Shade 0.1.
    2. Shade 0.5. Now look at the half strip underneath. What do you notice?
    3. Shade 0.8.
    4. 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

    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.

    5 - Class Challenge ~10 mins

    Key point

    Today we shade these amounts on the strip, in this order: 0.1, then 0.3, then 0.7, then 0.9. Each one adds a little more, and after each shade we check it together. Pupils take turns at the board and the class reads each amount as tenths, as a fraction, and as a decimal before we press Check.

    Match the tenths

    Pupil practice
    Module 3 · Fractions and First Decimals Number
    Lesson 39 · Tenths: the First Decimal Place
    Download Activity Book page (PDF)
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