Mathematics & Its Pedagogy
Data Handling
Mathematics & Pedagogy
Paper I
8 topics
What this chapter covers
The 8 topics below make up Data Handling in the CTET syllabus. Open any topic for notes, solved examples and a practice MCQ test.
1Data Collection
2Data Organization
3Tables
4Tally Marks
5Pictographs
6Bar Graphs (Elementary)
7Reading Data
8Drawing Conclusions
Study material & tests
📚 Study this chapter
Concept notes, key points, solved examples and hint-guided practice for every topic.
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🎯 Topic MCQ tests
8 auto-graded CTET-style questions per topic, with full explanations.
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📝 Chapter test
25 fresh mixed-difficulty questions, timed, with solutions.
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Key Concepts — Quick Reference
This chapter
Tally marks and counting in fives
| One stroke | | = 1 (a single vertical line for each item) |
|---|---|
| Bundle of five | 4 vertical strokes + 1 diagonal across them = 5 |
| Reading a tally | (complete bundles x 5) + leftover single strokes |
| Frequency | the total count for one category = sum of its tally marks |
Pictograph key and reading bar graphs
| Pictograph key/scale | 1 symbol = a fixed number of items (e.g. 1 apple = 2 children) |
|---|---|
| Pictograph value | (number of full symbols x key) + (half symbol = half the key) |
| Bar graph value | trace the top of the bar across to the scale axis and read it off |
| How many more | larger frequency - smaller frequency (subtract the two values) |