Measure the mass of objects using grams
Lesson details
Learning outcome
I can measure the mass of objects using grams.
Key learning points
- Scales can be used to measure the mass of objects.
- Scales are marked in different ways.
- Counting in 10s, 20s, 50s and 25s helps to read scales.
- Knowing the composition of 100 helps to determine the value of the unmarked intervals.
Keywords
Mass - Mass is a measure of how much matter something contains. It is measured by how much something weighs. Mass can be measured in grams.
Gram - A gram is a metric measure of mass. A paper clip has a mass of about 1 gram. The abbreviation is g.
Common misconception
Misreading of scales by counting marks rather than equal parts in between the marked intervals.
Remember to look at the number of equal parts in between the marked intervals then use your knowledge of the composition of 100.
Teacher tip
Practical lesson where possible where children can practice measuring the mass of objects using scales. Use scales where children need to count up in 10s, 20s, 25s or 50s.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Look at this sequence of numbers. What number would come next?
Q2.Match the phrase to the appropriate number to finish this sentence in different ways. One hundred is composed of { }
50
25
20
10
Q3.Look at the number line. Label the missing number.
Q4.Look at the scales. Which number is missing from where the arrow is pointing to?
Q5.Look at the scales. Which scale is showing the greater mass?
Q6.Starting with the smallest mass, put these scales in order of the mass they are showing.
Assessment exit quiz
6 Questions
Q1.By reading the scale, work out the mass of this toy car.
Q2.Look at the scales. Which scale is showing the greater mass?
Q3.Looks at the scales. Which scale is showing the smaller mass?
Q4.Starting with the lightest, put these scales in the order of the mass they are showing.
Q5.Andeep found a tomato that has a mass of 110 g. Sophia’s tomato has a mass that is 50 g more. Which scale shows the mass of Sophia’s tomato?
Q6.Andeep has a birthday cake with a mass of 540 g. He gives a slice of cake with a mass of 100 g to both Sophia and Izzy. He then eats a 60 g slice. Which scale shows the mass of cake that is left?
To help you plan your 3 maths lesson on: Measure the mass of objects using grams, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 3 maths lesson on: Measure the mass of objects using grams, 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 Measures: mass and capacity unit, dive into the full primary maths curriculum, or learn more about lesson planning.