Data Handling Class 8 Maths Worksheet with Quiz and Activities
Work with data: tally, group into classes, read histograms and build a pie chart from a survey. On WitKnowLearn you get the Data Handling Class 8 online quiz, online activities and interactive games, a data lab, a virtual lab and a worksheet-style practice sheet for Class 8 Maths.
Data Handling Class 8 Online Quiz
20 questions: 10 easy, 5 average and 5 thinking. Tap an answer and the next question comes up.
Data Handling Class 8 Activities
👆 Tap a tab to switch: Learn, Games, Labs, Challenges, Virtual Lab and Practice sheet
Data Handling: Tally, Group and Draw
A short read for Class 8 before you play. These notes cover Data Handling.
🔢 Frequency and class intervals
Frequency tells how many times a value occurs, and tally marks count in bundles of five. For many values we group data into class intervals of equal width, such as 0 - 10, 10 - 20 and 20 - 30, and count how many fall in each.
📊 Histograms
A histogram uses touching bars to show the frequency of each class interval, because the data is continuous. A bar graph is different: its bars have gaps because it shows separate categories.
🥧 Pie charts
A pie chart shows how a whole is shared. The central angle of a sector is the fraction of the data times 360 degrees, so 10 out of 40 gives 90 degrees. All the angles add to 360.
Data Handling Class 8 Maths Activities
Follow every step on the Number Train. Earn up to 3 stars in every activity.
This page covers Data Handling for Class 8 maths. It covers tally marks, frequency tables, class intervals, histograms, pie charts, central angles and the range of data.
The activities are pitched at Class 8 level. Sort charts by type, group data into classes and build a pie chart from a survey in the studio. Explore more Class 8 maths worksheets on WitKnowLearn after this chapter.
Key ideas and facts to know
| Chart | Best for | Key feature |
|---|---|---|
| Pie chart | Parts of a whole | Angles add to 360 |
| Histogram | Grouped continuous data | Bars touch |
| Bar graph | Separate categories | Gaps between bars |
How to use this page
- Flip the six cards and try the Data Lab in the Learn tab.
- Play the five games and the five labs to practise each idea.
- Finish the five challenges to collect up to 15 points.
- Do two virtual experiments and build a pie chart in the studio.
- Take the 20-question online quiz, with assertion and reason and case study questions, and fill in the practice sheet.
Worked examples
15/60 × 360 = 90 degrees.
0 - 10 has 2 values and 10 - 20 has 3 values.
This Data Handling worksheet for Class 8 science gives you online activities and interactive games that make the chapter clear. Every activity has a goal, a hint and a short fact, so students learn while they enjoy.
Complete Guide: Class 8 Maths Data Handling
This guide is for Class 8 students, parents and teachers. It covers Data Handling for Class 8 maths and shows how to use the quiz, labs and games on this page.
Introduction to Data Handling
Data handling helps us collect, organise and show information. This topic shows how to group data, draw histograms and pie charts and read them correctly.
What is there in this chapter
- Tally marks and frequency
- Class intervals
- Histograms
- Pie charts
- Reading graphs
Learning objectives
- Make a frequency table.
- Group data into class intervals.
- Read a histogram.
- Find central angles for a pie chart.
- Reason with assertions and case studies.
Learning outcomes
- I can group data into classes.
- I can read a histogram.
- I can find central angles and draw a pie chart.
Data Handling Class 8 resources on this page
| Resource | What it gives |
|---|---|
| Online quiz | 20 questions: 10 easy, 5 average and 5 thinking, with assertion and reason and case study questions and a full review |
| Flip cards | 6 picture cards with one-line rules |
| Data Lab | A hands-on lab with 3 rounds |
| Games | 5 interactive games |
| Labs | 5 activity labs |
| Virtual Lab | 2 experiments plus a studio that builds a pie chart |
| Challenges | 5 challenges, 15 points in all |
| Practice sheet | A worksheet-style sheet with 16 questions, name and date lines and a live score |
Key facts
| Idea | Rule |
|---|---|
| Frequency | count of a value |
| Class width | upper minus lower |
| Histogram | touching bars |
| Pie chart | angles add to 360 |
| Range | largest minus smallest |
Types of questions you may see
- Frequency and range
- Assertion and reason on charts
- Case study on a school survey
- Pie chart angles
Solved examples
45/360 × 80 = 10 students.
360 - 270 = 90 degrees.
Common mistakes
| Mistake | Correct idea |
|---|---|
| Using 100 instead of 360 for angles | A circle is 360 degrees |
| Leaving gaps in a histogram | Bars must touch |
| Wrong class width | Subtract the lower from the upper limit |
Data Handling in daily life
Data handling appears in school surveys, sports scores, news charts, weather reports and shop sales records.
Tips for parents and teachers
- Make a tally chart before counting.
- Add all the angles to check you get 360.
- Practise one assertion and one case study each week.
Related Class 8 Maths Worksheets
- ➗Class 8 Maths Worksheet: Rational Numbers
- 💯Class 8 Maths Worksheet: Percentage
- ⚖Class 8 Maths Worksheet: Linear Equations in One Variable
- 🧊Class 8 Maths Worksheet: Visualizing Solid Shapes
- 🧠Class 8 Maths Notes and Mind Maps
- 📚Class 8 Maths Worksheets, page 1
- 📚Class 8 Maths Worksheets, page 2
- 📚Class 8 Maths Worksheets, page 3
Data Handling Class 8 FAQs
What is frequency?
Frequency is the number of times a value occurs in the data.
What is a histogram?
A histogram is a graph of touching bars that shows the frequency of each class interval.
How do I find the central angle?
Divide the value by the total and multiply by 360 degrees.
What is the range of data?
The range is the largest value minus the smallest value.
What can students do on this page?
Students can take a 20-question online quiz with assertion and reason and case study questions, play five games, try five online activities, finish five challenges, run the Data Lab, do two virtual experiments, build a pie chart in the pie and table views,, and fill in a 16-question practice sheet with a Show answers button.
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