L4 Block Diagrams

In this interactive Year 2 Statistics lesson, children explore how to represent data using block diagrams, developing their understanding of visual data interpretation and comparison. This Working Without Worksheets lesson builds on previous learning about tally charts and pictograms, giving children the chance to see how data can be represented more accurately and on a scale. The lesson begins with a problem-solving starter where pupils interpret Esin’s descriptive data, such as “_____ was 4 seconds faster than _____.” Children must deduce the missing numbers and organise them into a table, reinforcing their ability to extract information from text and organise it systematically — a key skill in statistics and reasoning. In the main teaching input, pupils are introduced to block diagrams and how they compare to pictograms and tally charts. Through animated teaching slides, the teacher models how block diagrams are made up of equal-sized blocks to represent quantities accurately. Pupils investigate what each part of a block diagram shows, what conclusions can be drawn, and how it can be used to answer questions about the data. Using a favourite ice-cream flavours example, the class works together to identify patterns and practise reading scales. During the activity, children work collaboratively in small groups to create their own block diagrams using previously collected data. On large sugar paper, they draw the structure of a block diagram, use multilink cubes or coloured building bricks to represent each category, and label their axes and title. For instance, 8 red cubes could represent 8 votes for pasta. This tactile, visual experience helps pupils deepen their understanding of how data is displayed and compared. Teachers can photograph the group outcomes and add them to pupils’ books as evidence of understanding. The lesson concludes with a reflective plenary using key questions to deepen understanding: What do these blocks represent? How is this different