Add 3 numbers together in different contexts
Lesson details
Learning outcome
I can represent addition problems using ‘first, then, then, now’ and bar models.
Key learning points
- Addition of three addends can be described with a first …, then …, then …, now structure.
- A bar model can be used to represent a problem with three addends.
- A number line can be used to represent a problem with three addends.
Keywords
Addend - A number added to another number.
Sum - The total when numbers are added together.
Common misconception
Pupils may not be confident in representing addition problems using bar models.
Make connections between bar models, tens frames and 'first...then...then...now' representations. Take time to model examples.
Teacher tip
Tens frames, bar models and 'first...then...then...now' can be used to represent addition with three addends. Encourage pupils to use manipulatives alongside their own drawn representations.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.What is 3 + 3 + 1?
Q2.What is the sum of the three dice?
Q3.What is the missing number?
Q4.What is the sum of 3 + 4 + 2?
Q5.Match the calculations to the correct sum.
11
13
12
14
Q6.The missing numbers both have the same value. What is that value?
Assessment exit quiz
6 Questions
Q1.What is the sum of 3 + 3 + 1?
Q2.What is the sum of the numbers in the bar model?
Q3.What is the sum of the numbers in the bar model?
Q4.What is the missing addend?
Q5.What number is missing from this equation?
Q6.Alex chooses 3 of the number cards and adds them together. Which 3 cards did he choose if he gets a sum of 12?
To help you plan your 3 maths lesson on: Add 3 numbers together in different contexts, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 3 maths lesson on: Add 3 numbers together in different contexts, 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 Review strategies for adding and subtracting across 10 unit, dive into the full primary maths curriculum, or learn more about lesson planning.