Year 2 - Computing
Counting and comparing data
Using IT to organise and present data
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Study Guides
This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
In this unit pupils will explore what the term data means and how data can be collected. They will explore how attributes can be used to organise data and how data can be presented in the form of pictograms and block diagrams. Pupils will use the data presented to answer questions.
Lesson Summary
You will learn to compare data using tally charts.
Key Notes
- Data can be recorded in a tally chart.
- Tally charts can be used to count data.
- Totals can be compared in a tally chart.
Vocabulary To Learn
- tally: counting by adding marks for each item
- data: numbers, words or pictures collected to learn something
Common Mistakes To Avoid
- All tally marks should look the same in a straight line.
3 Quick Questions (With Answers)
1. Describe the system or process from this lesson in clear steps.
Data can be recorded in a tally chart. Tally charts can be used to count data.
2. Define this computing term and give one practical example. 'tally'
counting by adding marks for each item. Add one real device or system example to prove understanding.
3. Correct this common computing misconception.
Mistake: All tally marks should look the same in a straight line. Correction: Every fifth mark in a tally chart should be placed diagonally across a group of four. We do this to make it easier to count the total.
More Lessons In This Unit
Browse all guides in the Year 2 Computing guide library.