NCERT Class 1 Maths (Joyful Mathematics) · Chapter 9
Utsav
Patterns in festivals, decorations, colours, shapes, and numbers, and how to find what repeats and what comes next.
📌 What you’ll learn in this chapter
- Finding patterns in festival decorations
- Continuing colour and shape patterns
- Growing patterns
- Number patterns (jumps of 2, 3, 5, 10, and 11)
🪁 Let’s Begin: Kite Festival
On Makar Sankranti, Meera hangs a string of kites: 🔴🟡🔴🟡🔴… “What comes next?” asks her brother. “Yellow!” she shouts. Red, yellow, red, yellow is a pattern because it repeats.
🔁 Part 1: Repeating Patterns
- Find the part that repeats: 🌸🍃🌸🍃 → “flower, leaf” repeats.
- Say it aloud to hear the beat: “clap, snap, clap, snap…”
📈 Part 2: Growing Patterns and Number Patterns
▲ · ▲▲ · ▲▲▲ · ▲▲▲▲: one more each time.
2, 4, 6, 8… (jump of 2) · 10, 20, 30… (jump of 10)
💡 Number pattern trick
Find how much the number jumps each time (bigger or smaller), then keep jumping the same amount.
⚠️ Common mistake
Copying only the last item. ❌ In 🔵🔵🔴🔵🔵🔴, the next one is 🔵, not 🔴. Look at the whole repeating part.
✏️ Practice Time
Try these on your own first, then check your answer below each question.
Q1. ⭐🌙⭐🌙⭐ ___
✅ Answer🌙
Q2. 5, 10, 15, ___, ___
✅ Answer20, 25
Q3. 9, 8, 7, ___, ___
✅ Answer6, 5
📘 NCERT Textbook Activity Help
Hints and answers for the activities in the textbook, page by page. Try each one yourself before looking at the answer!
Pages 98–99 · Utsav pictureFestivals
✅ AnswerLook for patterns in the picture: the toran of leaves and flowers, the sun design, the rangoli, and the dancers’ clothes. Talk about Lohri, Bihu, Pongal, and Makar Sankranti.
Page 100 · Extend the patternsDraw further
✅ AnswerA. stone, stick, stone, stick → stone, stick… · B. leaves, flower → leaves, flower… · C. diya, candle → diya, candle… · D. Continue the stars in the same colour order · E. Continue the flags in the same colour order · F. Copy the band pattern (shape, then zigzag) to fill the strip · G and H. Repeat the same order of objects around the plate
Page 101 · Fingerprint patternWhat comes after pink?
✅ AnswerPink, black, pink, black, pink → black comes next, because the two colours take turns.
Page 102 · Colour and completePatterns
✅ AnswerRed, blue, red, blue, red → blue, red, blue
Triangle, square, triangle, square, triangle → square, triangle, square (yellow and green)
Arrows: copy the same order of directions and colours again
Hexagon, star, star → hexagon, star, star, hexagon
Growing triangles: 1, 2, 3 → 4, 5 triangles
For the line and tree patterns, look at what changes from one box to the next and do the same again.
Page 103 · Number patternsTriangle, square, triangle, square, triangle → square, triangle, square (yellow and green)
Arrows: copy the same order of directions and colours again
Hexagon, star, star → hexagon, star, star, hexagon
Growing triangles: 1, 2, 3 → 4, 5 triangles
For the line and tree patterns, look at what changes from one box to the next and do the same again.
Missing numbers
✅ AnswerToran: 1, 3, 5, 7, 9, 11, 13 (jump of 2)
Caterpillar: 22, 21, 20, 19, 18, 17, 16 (one less each time)
Train: 10, 20, 30, 40, 50, 60 (jump of 10)
Beads: 11, 22, 33, 44, 55, 66, 77 (jump of 11)
Lily pads: 5, 10, 15, 20, 25, 30 (jump of 5)
Flowers: 2, 5, 8, 11, 14, 17, 20 (jump of 3)
Page 104 · KolamCaterpillar: 22, 21, 20, 19, 18, 17, 16 (one less each time)
Train: 10, 20, 30, 40, 50, 60 (jump of 10)
Beads: 11, 22, 33, 44, 55, 66, 77 (jump of 11)
Lily pads: 5, 10, 15, 20, 25, 30 (jump of 5)
Flowers: 2, 5, 8, 11, 14, 17, 20 (jump of 3)
Complete it
✅ AnswerCopy the drawn half onto the empty half so both sides match, going around the dots in the same way.
👨👩👧 Tips for Parents
- Make a pattern with spoons and forks on the table.
- Look for patterns on sarees, tiles, and grills.
- Clap a rhythm and ask your child to copy and continue it.