Data handling and bar graphs
Collecting, organising and showing data in bar graphs and pictographs. Read one part at a time and tap “I know this”. Then test yourself in the quiz.
Know it already? Jump straight to the quiz
The data cycle
- Ask a question.
- Collect data (questionnaire, tally marks).
- Organise it in a table.
- Represent it in a graph.
- Read and discuss the results.
Graphs
- Bar graph: bars of equal width with gaps; read the height on the scale.
- Pictograph: pictures; the key says what one picture is worth.
Read the graph: find the top of the bar and read across to the scale. Banana = 9 and Pear = 3, so 9 − 3 = 6 more learners chose banana. Altogether: 6 + 9 + 3 + 5 = 23 learners.
Give every graph a title and label both axes.
Remember this and test yourself
- Ask, collect, organise, represent, read.
- Tally marks: four lines and the fifth across.
- Bar graph: read the height on the scale.
- Pictograph: check the key.
Write these points in your book. Read them again the night before the test.
Ask, Collect, Organise, Show, Discuss: the data cycle.
Important words
First say the answer yourself, then turn the card over.
Match column A to column B
Tap a word in column A, then its meaning in column B. You can also start in column B.
Now the real quiz!
The quiz has many more questions on this topic. Every question shows straight away whether you are right and explains why.
Take the quiz: Data handling and bar graphs- Let your child work the examples on paper and explain them to you.
- The ticks (“I know this”) are saved on this device only. We never ask for names or emails.
Follows CAPS for Grade 4 Mathematics. Always check your teacher’s notes and textbook too.