Mathematics: Class 1 — Chapter 13: So Many Toys

13.1 So Many Toys

In this section, students practice counting objects in a visual scene and comparing their quantities using comparison vocabulary.

Counting Toys in the Shop

Look at the toy shop picture and find the total count for each type of toy:

  • Elephants: Count the blue elephant toys on the bottom shelf.
  • Teddy Bears: Count the brown teddy bears on the top shelf.
  • Cars: Count the red toy cars on the top shelf.
  • Dolls: Count the dolls on the bottom shelf.

Comparing Quantities

Complete the sentences by comparing the quantities using the terms more than, less than, or equal to:

  • A. The number of dolls is ________ the number of cars.
  • B. The number of elephants is ________ the number of dolls.
  • C. The number of teddy bears is ________ the number of elephants.
  • D. The number of cars is ________ the number of teddy bears.
13.2 Colourful Flowers

This section focuses on counting flowers of different colours and identifying the least and most frequent items in a set.

Flower Counting Activity

Count the flowers shown in the garden border and write down the numbers:

  • Blue flowers: Count the blue-coloured flowers.
  • Orange flowers: Count the orange-coloured flowers.
  • Red flowers: Count the red-coloured flowers.
  • Purple flowers: Count the purple-coloured flowers.

Analyzing the Data

  • A. Name the colour of flowers which are least in number.
  • B. Name the colour of the flowers which are most in number.

True or False Statements

  • A. Number of red flowers is more than the blue flowers. (True/False)
  • B. Number of orange flowers is less than the purple flowers. (True/False)

Project Work

  • A. Make a card with a border of colourful flowers.
  • B. Find out in your class how many children have $3$ letters in their names, how many have $4$ letters, and how many have more than $4$ letters in their names.
13.3 Puzzles and Brain Teasers

A collection of mathematical puzzles, pattern extensions, and logical reasoning activities.

Puzzles A to F: Numbers and Logic

  • A. Hidden Numbers: Identify the numbers on the cards that are partially hidden under the blue bowls.
  • B. Log Counting Illusion: Count the logs shown in the drawing. Is it $3$ logs or $4$ logs? Observe how perspective changes the count.
  • C. Glass Patterns: Zarina set glasses in a growing triangular pattern ($1$ glass, $3$ glasses, $6$ glasses). Extend the arrangement for the next two steps.
  • D. Number Word Search: Find the number names from $1$ to $10$ hidden in the letter grid.
  • E. Equal Sum Balance: Fill the numbers from $1$ to $5$ in the given connected circles so that the sum of the numbers on both linear sides is equal.
  • F. Gillu's Favorite Number: Gillu's favorite number is $8$. Ask mathematical questions (e.g., $5 + 3$, $10 - 2$) that result in an answer of exactly $8$.

Puzzles G to L: Shapes, Grids, and Riddles

  • G. Shape Sudoku: Fill the triangle, square, and circle in the $3 \times 3$ grid so that each shape occurs only once in each row (horizontal) and column (vertical).
  • H. Object Grid Placement: Take $4$ different types of objects (with $4$ copies of each). Place them in a $4 \times 4$ grid so that every object occurs only once in each row and column.
  • I. Mirror Images: Use a mirror to read the reflected numbers and identify what numbers they represent (e.g., reflected $25$, $73$, $52$, $39$).
  • J. Who Am I? (Number Riddles):
    1. I am between $5$ and $10$. I become three more when read upside down. (Answer: $6$, which becomes $9$)
    2. I am $3$ more than $8$ and $3$ less than $14$. (Answer: $11$)
    3. I am after $50$ and before $54$. Sum of my digits is $7$. (Answer: $52$)
    4. I am just before $40$. (Answer: $39$)
    5. Add $5$ to me and you will get $24$. (Answer: $19$)
    6. I am just after $35$. (Answer: $36$)
    7. Reduce $8$ from me and $14$ will be left. (Answer: $22$)
  • K. Matchstick Puzzle: Six matchsticks are used to make a zero. Can you make another number by shifting a single matchstick?
  • L. Broken Pot Puzzle: Find the missing piece from the scattered shards to complete the broken ceramic pot.

Puzzles M to U: Arithmetic and Combinations

  • M. Repeated Subtraction: How many times can you subtract $5$ from $25$?
  • N. Seed Sum Puzzle: Place $3$ seeds on different numbers in the grid to get a sum of $17$. Find multiple ways to do this. If you have only $2$ seeds, which numbers will sum to $17$?
  • O. Shadow Matching: Identify and encircle the identical shadow image of the monkey from the four options.
  • P. Cross Grid Sums: Write numbers from $5$ to $9$ in the cross-shaped card so that the horizontal row and vertical column have the same total.
  • Q. Target Center Number: Use addition or subtraction on the outer numbers of the hexagon to obtain the center numbers ($6$, $11$, and $15$).
  • R. Radiating Equations: Fill in the blank circles with correct numbers to satisfy the equations radiating from the center value of $15$.
  • S. Coin Combination: Sarita has coins of values $10$, $5$, $2$, and $1$. What is the minimum number of coins needed to spend exactly $₹49$?
  • T. Fruit Algebra: Find the value of the orange:
    $\text{Watermelon} + \text{Watermelon} = 8$
    $\text{Orange} + \text{Watermelon} = 10$
    $\text{Orange} = \text{?}$
  • U. Ball Game: Choose $3$ balls from the set ($2$, $4$, $6$, $8$) to satisfy the conditions. Hint: Try rotating the balls (e.g., rotating $6$ makes it $9$).
    1. Choose $3$ balls so their sum is $15$.
    2. Choose $3$ balls to get a maximum score.
    3. Choose $3$ balls to get a minimum score.