NCERT Class 1 Maths Chapter 9 Solutions | Utsav (Patterns) | Free PDF

Free NCERT solutions for Class 1 Joyful Mathematics Chapter 9 - Utsav. Learn shape patterns, number patterns, color patterns, and repeating patterns. Complete answers with explanations. PDF download.

Utsav Patterns and Sequences • Pages 98-104

Complete NCERT solutions for Class 1 Joyful Mathematics Chapter 9. Celebrate the transition of seasons through festivals like Makar Sankranti, Pongal, Bihu, and Lohri. Children will explore the joyful world of Patterns—from visual shapes and thumbprints to Number Sequences and traditional Kolam art.

Chapter Overview

Chapter 9

Utsav

Pages 98-104

Joyful Mathematics

Patterns & Sequences

Visual & Number Logic

Concepts Covered in this Chapter

Festivals

Uttarayan, Pongal, Bihu

Shape Patterns

Extending visual sequences

Thumb Prints

Creating art patterns

Vegetable Prints

Nature's patterns

Skip Counting

Jumping numbers (+2, +5)

Reverse Counting

Counting backwards

Kolam / Rangoli

Dot grids and symmetry

Action Patterns

Clap, Snap, Stamp

Chapter Solutions

1 Utsav & Festivals (Pages 98-99)

🎉 Cultural Note: Harvest Festivals

According to the Indian calendar, the festival of Uttarayan like Makar Sankranti, Pongal, Bihu, and Lohri marks the beginning of the transition from winters to summers. The celebration signifies the return of sunny days and the start of the harvest season.

Teacher/Parent Activity Idea:

Discuss various local festivals celebrated by children with their families.
Look at the picture of the beautiful Sun and discuss the main elements of each celebration (e.g., Kites for Makar Sankranti, Bonfire for Lohri).
Identify various shapes and patterns in the festival decorations.

2 Extend the Patterns (Page 100)

Observe the repeating sequences and figure out what comes next to extend the pattern.

A. Shape Pattern (Triangle, Circle...)

Rule: Triangle ➔ Circle ➔ Triangle ➔ Circle

Answer: Draw a Triangle then a Circle.

B. Arrow Pattern (Up, Down...)

Rule: Arrow Up (↑) ➔ Arrow Down (↓) ➔ Arrow Up (↑) ➔ Arrow Down (↓)

Answer: Draw Arrow Up (↑) then Arrow Down (↓).

C. Flower and Leaf Pattern

Rule: Flower ➔ Leaf ➔ Flower ➔ Leaf

Answer: Draw a Flower then a Leaf.

D. Face Pattern (Happy, Sad...)

Rule: Happy Face (😊) ➔ Sad Face (🙁) ➔ Happy Face (😊) ➔ Sad Face (🙁)

Answer: Draw a Happy Face (😊) then a Sad Face (🙁).

E. Shape inside Shape Pattern

Rule: Circle in Square ➔ Square in Circle ➔ Circle in Square...

Answer: Draw a Circle inside a Square then a Square inside a Circle.

3 Art Patterns - Thumbprints & Colors (Pages 101-102)

Page 101: Thumbprint Patterns

Munna created a pattern by using the impression of his thumb and fingers. It goes: 1 thumbprint, 2 thumbprints, 3 thumbprints... then 4 thumbprints, 5 thumbprints.

Activity: Use watercolor and your thumb to create your own growing pattern!

Page 101: What color should come after pink and why?

If the color pattern is (e.g., Red, Blue, Pink, Red, Blue, Pink...)

Answer: The color Red should come after pink, because the pattern repeats starting with Red again.

Page 102: Complete the patterns by coloring.

Look at the shapes (diamonds, circles, crosses). Identify the two alternating colors used in the sequence and color the blank shapes to continue that exact alternation.

4 Study the pattern and fill in the missing numbers (Page 103)

🧠 Concept: Number Sequences

Number patterns follow a rule. The rule might be adding the same number every time (+2, +5, +10) or subtracting a number (counting backwards).

Sequence 1: Train Bogeys (Odd Numbers)

Numbers given: 1, 3, 5, 7, __, 11, __ (Rule: Add 2)

Answer: 1, 3, 5, 7, 9, 11, 13

Sequence 2: Leaves (Backward Counting)

Numbers given: __, 22, 21, 20, __, __, 17, 16, __ (Rule: Subtract 1)

Answer: 23, 22, 21, 20, 19, 18, 17, 16, 15

Sequence 3: Water Drops (Counting by Tens)

Numbers given: 10, 20, 30, __, 50, __ (Rule: Add 10)

Answer: 10, 20, 30, 40, 50, 60

Sequence 4: Flowers (Multiples of 11)

Numbers given: 11, 22, 33, __, __, 66, __ (Rule: Add 11)

Answer: 11, 22, 33, 44, 55, 66, 77

Sequence 5: Lotus Leaves in Pond (Counting by Fives)

Numbers given: 5, 10, __, 20, __, __ (Rule: Add 5)

Answer: 5, 10, 15, 20, 25, 30

Sequence 6: Stones (Adding 3)

Numbers given: 2, 5, __, 11, __, __ (Rule: Add 3)

Answer: 2, 5, 8, 11, 14, 17

5 Kolam / Rangoli & Project Work (Page 104)

A. Completing the Kolam

Murthy and Vani are making a kolam. You need to connect the dots in the grid exactly like the drawn example to complete the symmetric pattern. Trace the curved lines around the dots.

B. Project Work Ideas

Nature Patterns: Observe patterns in nature like the veins on leaves, spots on a butterfly, zebra stripes, or a beehive.
Object Patterns: Collect pebbles, leaves, or bangles and arrange them in repeating designs.
Action Patterns: Create sound/action patterns. Example: (Clap, Snap, Stamp) ➔ (Clap, Snap, Stamp).

Extra Practice Questions

Q1. Complete the pattern: 10, 20, 30, ___, 50, ___

Answer: 40 and 60. (Counting by 10s).

Q2. Complete the pattern: Apple, Banana, Apple, Banana, ________.

Answer: Apple.

Q3. Fill in the missing numbers counting backward: 10, 9, 8, ___, 6, ___

Answer: 7 and 5.

Key Vocabulary Words

Utsav (Festival) Pattern Sequence Extend Skip Counting Thumbprint Kolam Rangoli Harvest