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# Copyright © Mathematics Mastery 2017
Parental Guidance
During this unit, pupils will be data handling with pictograms, bar charts and time graphs. This week pupils will have read and interpreted and constructed their own pictograms and bar charts.
In Year 3 pupils learnt to interpret and present data using bar charts, pictograms, tallies and tables.
In Year 5 pupils will interpret information in tables and line graphs and solve comparison, sum and difference problems.
Pictograms
A way of representing data which uses pictures, arranged either in a row or a column, to show the opinions of people.
Bar Charts
Data is represented by the length or height of bars.
Time graphs
Time graphs show information that is connected in some way to time and often shows how something changes over time in relation to something else. You can think of time graphs as telling a story, over time.
Both tasks for Week 1 and 2 of this unit are based on constructing bar charts.
Unit 4: Discrete and continuous data (Week 1 of 2)