Partition two-digit numbers into tens and ones using place value resources
Lesson details
Learning outcome
I can partition two-digit numbers into tens and ones using place value resources and represent this on part-part-whole models and bar models.
Key learning points
- Two-digit numbers can be partitioned into tens and ones.
- The order of the digits tells us their value.
- We can use a Gattegno chart or a place value chart to help us remember what the digits on a two-digit number represent.
Keywords
Partition - To split a whole up into parts.
Combine - To put parts together to make a whole.
Parts - A piece or section of a whole.
Whole - All of something; complete.
Common misconception
Children may not understand the importance of the order of the tens and ones digits in indicating the value of each part of a two-digit number.
Use place value charts, place value arrows and Gattegno charts to reinforce the value of each digit.
Teacher tip
The structure of two-digit numbers is examined to prepare for later calculations in the form 30 + 4 or 34 - . When using practical equipment on models, it is important not show the whole and parts together as it would represent double the intended amount. Note, bar models are not to scale.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Match each number to the number that has an equal value.
38
83
6 tens 7
7 tens 6
Q2.Which of these numbers has the most tens?
Q3.Which of these numbers is less than 31?
Q4.Which of these numbers is greater than 64?
Q5.Which of the following could be the missing number? ___ < 47
Q6.Which of the following is incorrect?
Assessment exit quiz
6 Questions
Q1.If we combine the parts, what will the whole amount be? (Note, each bundle of sticks is a group of 10)
Q2.Which of the following part-part-whole models is correct?
Q3.What is the missing part in the part-part-whole model?
Q4.What is the missing part in the bar model?
Q5.Each number has been partitioned into tens and ones. Which number has been partitioned correctly?
Q6.Izzy wants to buy the ball. She already has nine 1 p coins. Which of the following shows how much more money she will need to buy the ball?
To help you plan your 2 maths lesson on: Partition two-digit numbers into tens and ones using place value resources, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 2 maths lesson on: Partition two-digit numbers into tens and ones using place value resources, 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 1 maths lessons from the Comparing, ordering and partitioning 2-digit numbers unit, dive into the full primary maths curriculum, or learn more about lesson planning.