NCERT Class 1 Mathematics Joyful-Mathematics (English): Chapter 4 — Making 10 (Numbers 10 to 20)
This chapter, "Dotty Bug and her Designs," from NCERT's Joyful Mathematics for Class 1, introduces children to recognizing numbers through visual patterns. It uses the example of a ladybug's dots to encourage observation and counting. Activities include writing the number of dots on bugs, creating dot designs with various objects like seeds and buttons, and identifying numbers formed by dot arrangements. A game involving dice rolling and coloring boxes helps reinforce number recognition and comparison. The chapter emphasizes subitization, the ability to instantly recognize small quantities without counting, using dot and color flashcards. It aims to build foundational number sense and visual recognition skills essential for early mathematics learning in the CBSE curriculum.
Quick info
| Board | CBSE / NCERT |
|---|---|
| Class | Class 1 |
| Subject | Mathematics |
| Book | Joyful-Mathematics (English) |
| Chapter | Chapter 4 — Making 10 (Numbers 10 to 20) |
| Language | English |
| PDF type | NCERT Textbook |
| Session | CBSE 2026 |
| Reading time | 2 minutes |
| Word count | 217 |
Learning outcomes
- Recognize and count dots on objects.
- Create and identify numbers from dot arrangements.
- Understand the concept of subitization.
- Reinforce number recognition through play.
- Compare quantities based on colored boxes.
Vocabulary
| Word | Meaning |
|---|---|
| Ladybug | A small beetle, often red or yellow, with black spots on its back. |
| Dots | Small round marks. |
| Designs | Patterns or arrangements. |
| Objects | Things that can be seen and touched. |
| Arrangement | The way things are placed or organized. |
| Dice | A small cube with numbered faces, used in games. |
| Subitization | The ability to instantly recognize the number of items in a small group without counting. |
| Flash cards | Cards with pictures or words used for learning. |
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Practice questions
- How many dots are on the ladybug shown in the chapter? Answer: The chapter uses the ladybug as an example and asks the child to count the dots on each bug shown.
- Name three objects you can use to make dot designs. Answer: Tamarind seeds, pebbles, buttons, bindis are examples given in the chapter.
- What is the special name for recognizing numbers without counting? Answer: Subitization.
- In the game, what do you do after rolling the dice? Answer: Colour a box with the same number of dots as on the dice.
Frequently asked questions
What is the main theme of NCERT Class 1 Mathematics Chapter 4?
The chapter focuses on recognizing and understanding numbers through visual patterns and dot designs, using examples like ladybugs.
What activities are included in the 'Dotty Bug and her Designs' chapter?
Activities include counting dots on bugs, creating dot designs with objects, identifying numbers from arrangements, and playing a dice game.
What is subitization as explained in this chapter?
Subitization is the ability to instantly recognize the number of items in a small group without needing to count them.
How does the dice game help students?
The dice game helps children practice number recognition and comparison by coloring boxes corresponding to the dice roll.
What materials can be used for making dot designs?
Students can use objects like tamarind seeds, pebbles, buttons, and bindis to create their dot designs.
Related resources
Important topics
Topics covered
NCERT Class 1 Mathematics — Joyful-Mathematics (English) — Chapter 4 — Making 10 (Numbers 10 to 20). Verified by NCERT Help Editorial Team. Reviewed on 29 Jul 2026. Last updated 10 Aug 2026.