Describe and represent hundredths as a decimal number
Lesson details
Learning outcome
I can describe and represent hundredths as a decimal number.
Key learning points
- If a digit is moved one column to the right it becomes one tenth the size.
- One hundredth is one tenth the size of one tenth.
- Hundredths are recorded in the column to the right of the tenths so one tenth is 0.01
Keywords
Hundredth - The name we give to one part of one hundred equal parts.
One hundredth the size - When a whole is divided into one hundred equal parts, we can say one of those parts is one hundredth the size of the whole.
Hundredths column - The hundredths column places the number of hundredths a given number has.
Common misconception
Pupils may record two-digit hundredth values incorrectly. For example 12 hundredths as 0.012
Use place value counters to represent the number and demonstrate the regrouping of ten hundredths.
Teacher tip
Make sure pupils have time to use the language of 'one hundredth the size' and 'one hundred times smaller' interchangeably. You might like to give time to pupils moving digits within a place value chart to combine language and operation.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Look at the image. What is the value the shaded part?
Q2.What is the value of the 1 in this place value chart?
Q3.One tenth can be written as 0.1 so 3 tenths can be written as .
Q4.0.1 is __________ than 1.
Q5.Which number is one tenth the size of 100?
Q6.Tick the correct descriptions for this representation.
Assessment exit quiz
6 Questions
Q1.When a number is made 100 times smaller, it is one ___________ the size of the whole.
Q2.What number is one hundredth the size of 100?
Q3.What number(s) are being represented on the number line?
0.45
0.50
0.54
Q4.Here is a zoomed in picture of a 1 litre jug. How much water is there? Write your answer as a decimal.
Q5.One hundredth the size of one is . Write your answer as a decimal number.
Q6.If 3 is made one tenth the size, and then one tenth the size again, what will the number become?
To help you plan your 5 maths lesson on: Describe and represent hundredths as a decimal number, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 5 maths lesson on: Describe and represent hundredths as a decimal number, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 2 maths lessons from the Understand hundredths as parts of a whole and represent unit, dive into the full primary maths curriculum, or learn more about lesson planning.