Myths about teaching can hold you back
- Year 5
Solve comparison and change problems in a range of contexts
I can solve comparison and change problems in a range of contexts.
- Year 5
Solve comparison and change problems in a range of contexts
I can solve comparison and change problems in a range of contexts.
These resources were made for remote use during the pandemic, not classroom teaching.
Switch to our new teaching resources now - designed by teachers and leading subject experts, and tested in classrooms.
Lesson details
Key learning points
- Change can be described using multiplication or division. Division can be represented as multiplication by a fraction.
- The sentence 'The __________ is ___ times the size of the __________' supports us to describe a comparison or change.
- If units are different, we should convert so that they are the same - this supports us to calculate.
- To find a missing factor, we can divide the product by the known factor.
Keywords
Bar model - A bar model is a pictorial representation of a problem where bars are used to represent the known and unknown quantities.
Multiplicative - A multiplicative relationship is a comparison between numbers that relates to multiplication (and hence division). In a multiplicative relationship, the parts are equal.
Times the __________ - Times the __________ is a phrase that is used to compare measures multiplicatively. For example, one tree might be 'three times the height' of another tree - it is three times as tall.
Common misconception
Manipulating equations can result in errors.
To find a missing factor, we can use known facts where applicable, or we can divide the product by the known factor. Always encourage children to describe each part of the equation and what it represents.
To help you plan your year 5 maths lesson on: Solve comparison and change problems in a range of contexts, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 5 maths lesson on: Solve comparison and change problems in a range of 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 Compare and describe measurements using knowledge of multiplication and division unit, dive into the full primary maths curriculum, or learn more about lesson planning.
Licence
Prior knowledge starter quiz
6 Questions
Q1.Izzy has a football that has a mass of 540 g and a tennis ball. The football is nine times the mass of the tennis ball. What is the mass of the tennis ball?
Q2.A full kettle contains 1 l 400 ml of water and a full cup contains 200 ml of water. You can fill cups with water from the full kettle.
Q3.A flight to France takes one fifth of the time it takes to fly to New York. If it takes 1 hour 30 minutes to fly to France, how long does it take to fly to New York?
Q4.What is 8 times the value of £2.50? 8 times the value of £2.50 is .
Q5.Alex is saving for a new laptop. He has saved £70 and has saved $${1}\over{4}$$ of the cost of the laptop. Which expressions shows how much does the laptop costs?
Q6.Alex is saving for a new laptop. He has saved £70 and has saved $${1}\over{4}$$ of the cost of the laptop. How much more money does he need to save? Alex needs to save £ .
Assessment exit quiz
6 Questions
Q1.20, 000 people watched Arsenal play and 80. 000 watched Manchester City play. How many times more people went to Manchester City?
Q2.There are 25 g of blueberries in a small box and 800 g in a large box. How many times the small box is the large box?
Q3.There are 900 g of strawberries in a large box and 90 g in a small box. Which word completes this sentence? The small box is one the mass of the large box.
Q4.Which equations can be formed from the bar model?
