Find and make amounts within 20 p
Lesson details
Learning outcome
I can calculate and make given amounts within 20 p.
Key learning points
- A combination of different coins can be used to make the same total value.
- It is more efficient to use fewer coins to pay for an item.
- Using coins of a greater value where possible will result in fewer coins being used.
- With prices between 10 p and 20 p, partitioning the price into '10 and a bit' allows more efficient working.
Keywords
Total value - Where referring to money, value refers to how much something is worth. The total value can be found by adding the value of each coin in a set.
Efficiently - Not wasting time or effort. An efficient strategy is one we can carry out easily.
Common misconception
Children may start counting out using any coins available instead of thinking of the whole amount needed first and partitioning it into manageable parts where they can deploy known strategies.
Encourage children to partition teen numbers using a part-part-whole model and use what they know about making 10, and the numbers up to 10, to find combinations that use the fewest possible coins to total a given value.
Teacher tip
This lesson brings together knowledge from many units, including the composition of number. Explore these ideas practically, manipulating coins within known part-part-whole models to help children connect these ideas with existing knowledge and understanding.
Licence
Lesson video
Loading...
Prior knowledge starter quiz
6 Questions
Q1.What is the total value of these coins? p
Q2.Which set of coins could you use to pay for the teddy?
Q3.What is the total value of this set of coins? p
Q4.Which coins show a total of 10 p?
Q5.Aisha wants to pay for a toy costing 9 p in the most efficient way. Which set of coins should she choose?
Q6.Alex has some coins which have a total value of 7 p. One of his coins is a 5 p coin. Which other coin does he need?
Assessment exit quiz
6 Questions
Q1.Which coins show the most efficient way to make 12 p?
Q2.Which coins show the most efficient way to make 12 p without using a 10 p coin?
Q3.Which totals can be made using these coins?
(You only have one of each.)
Q4.Which item can Alex buy using only two coins?
Q5.True or false. The most efficient way to make 15 p is by using three 5 p coins.
Q6.Which coins show a total value of 20 p?
To help you plan your 1 maths lesson on: Find and make amounts within 20 p, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 1 maths lesson on: Find and make amounts within 20 p, 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 Unitising and coin recognition - value of a set of coins unit, dive into the full primary maths curriculum, or learn more about lesson planning.