From counting to data
Graphs start with counting, then turn the counts into something you can compare at a glance. These sheets do both on one page, then ask questions that need the graph to answer.
Talk about the graph
Ask which bar is tallest and how they can tell without counting, and what a new picture would do to the graph.
In the Australian Curriculum
- FoundationCollecting, sorting and comparing data shown with objects and pictures (AC9MFST01).
- Year 1Collecting categorical data, making one-to-one displays, and comparing and discussing the counts.
- Year 2Collecting and interpreting categorical data.
- Year 3Recording data in frequency tables and comparing different graphs of the same data (AC9M3ST01, AC9M3ST02).
The one-square-per-picture graphs here are what the Year 1 curriculum calls one-to-one displays. Tally charts look ahead to Year 3, when data is recorded in frequency tables before it is graphed.
For a real investigation, start with a question the class cares about, such as favourite fruit at recess, collect the answers together, then use these sheets for independent practice.
Summarised in our own words from the Australian Curriculum: Mathematics, Version 9.0 (ACARA).