NCERT Solutions for Class 2 Joyful Maths Chapter 02 Shapes Around Us

Question. A. Look at the picture and observe different musical instruments.
(i) Circle the musical instruments that are similar in shape to a drum.
(ii) Tick the musical instruments that are similar in shape to a matka.
(iii) Tick the shape similar to the shape of a shehani (and other shapes shown).
(iv) How is the shape of harmonium different from the shape of a drum?
Answer: Based on the picture shown:
(i) Instruments with a round, flat shape like a drum include the tablas and other circular percussion items visible in the image.
(ii) Objects matching the pot-like shape of a matka can be identified among the displayed items.
(iii) Various shapes resembling a shehani and other tools are marked as instructed.
(iv) A harmonium has a rectangular, box-like shape, whereas a drum is cylindrical or round and flat - quite different in form.
In simple words: Different musical items have different shapes. Some are round and flat like drums, some look like pots, and some are long boxes. You can group things by how they look.

Exam Tip: When comparing shapes, focus on the main form - is it round, flat, long, or box-shaped? This helps you sort objects by their geometry.

Question. B. Have you seen or played any of the musical instruments? Share your experiences with your classmates.
Answer: I have watched a street musician play a flute once, and the sound was amazing.
In simple words: Talk about a time you heard or played music with an instrument and what it was like.

Exam Tip: Personal experience questions value your own honest recollection - share any real moment, no matter how small, and explain what made it special to you.

Question. C. Cross the odd one out.
Answer: In the first row, the orange (a sphere) is crossed out because the carrot (cone), ice cream cone (cone), and radish (cone) are all pointed at one end, whereas an orange is round all over. In the second row, the building (a cuboid) is crossed out because the sun (sphere), ball (sphere), and Earth (sphere) are all round, while the building is box-shaped. In the third row, the pipe (a cylinder) is crossed out because the box (cuboid), books (cuboid), and cheese (cuboid) are all rectangular blocks, whereas the pipe is rounded and long.
In simple words: Find the shape that does not match the others. If three things are round balls and one is a box, the box is different - that one gets crossed out.

Exam Tip: Look carefully at the shape of each object. Group the ones that look the same, and the one left alone is your answer.

Question. Match the musical instruments and objects with their solid shapes. One has been done for you.
Answer: The drum connects to a cylinder. The piano matches with a cuboid (rectangular block). The bell matches with a hemisphere or dome. The cube die is labeled as a cube. The cone shape connects to an ice cream cone. The pyramid connects to the tent shape. The cylinder connects to the pencil or pipe. The sphere connects to a ball or planet. A triangular prism connects to the tent. A cuboid matches the box or chest. The ball connects to a sphere or round shape.
In simple words: Match each item to the math shape it looks like. A drum looks like a cylinder, a ball looks like a sphere, and a box looks like a cuboid.

Exam Tip: Picture each 3D shape in your mind before matching. Cylinders are round and tall, cubes are equal all over, and spheres are perfectly round.

Question. If you also have to decorate the following shapes in the same way with stars, ribbon stripes and pompom balls, how many of these items will you need?
Answer:

Exam Tip: Count each feature separately - faces are the flat surfaces, edges are the lines where surfaces meet, and corners are where edges join. Write numbers clearly in each cell.

Question. Look at the objects and fill the table.
Answer:

Exam Tip: Remember the patterns - all cubes and cuboids share the same counts (6 faces, 12 edges, 8 corners), while cones and cylinders are different. A sphere stands alone with just 1 curved face.

Question. Touch and Tell. Who am I?
Answer: Collect different objects with variation in faces, corners and edges. Cover the child's eyes and ask them to pick an object based on the clues given by other children. For example, a child may be asked to take out an object with one corner. Similarly, continue with other objects. This activity helps children learn the properties of 3D shapes through touch and description. Below is a reference table showing objects and their properties:

Exam Tip: This activity teaches shape recognition through sensory learning. Understanding how many corners, edges, and faces each shape has helps identify it by touch alone.

Question. Name the objects which have -
Answer:

Exam Tip: Count the corner points carefully. A corner is a sharp point where edges meet. Curved shapes like spheres and cylinders have no corners at all.

Question. A. Look at the picture and observe different musical instruments.
(i) Circle ○ the musical instruments that are similar in shape to a drum.
(ii) Tick ✓ the musical instruments that are similar in shape to a matka.
(iii) Tick ✓ the shape similar to the shape of a shehnaai (sphere, ball, cylinder).
(iv) How is the shape of harmonium different from the shape of a drum?
Answer: (iii) The shape of harmonium is rectangular whereas the shape of drum is cylindrical.
In simple words: A harmonium has four sides and looks like a box, but a drum is round and looks like a tube.

Exam Tip: When comparing shapes, name the exact shape each object takes - using words like "rectangular," "cylindrical," and "spherical" shows clear understanding.

Question. B. Have you seen or played any of the musical instruments? Share your experiences with your classmates.
Answer: I have watched a street musician play the flute before, and the sound was wonderful.
In simple words: I heard someone play a flute in the street and it sounded very nice.

Exam Tip: Share a real or thoughtful example from your own life or observation - examiners value honest, personal responses over made-up answers.

Question. C. Cross the odd one out.
Answer: The odd one out in each group is marked with an X symbol in the image - the orange ball (sphere shape) is crossed out in the first row, the building (cuboid shape) in the second row, and the pencil or stick (cylinder shape) in the third row. These are identified as the shapes that do not fit the pattern of the other objects in their groups.
In simple words: We mark the object that is different from the others in each row by putting an X on it.

Exam Tip: Look carefully at the shape and size of each object - the odd one is usually the shape that looks completely different from all the others in its group.

Question. Match the musical instruments and objects with their solid shapes. One has been done for you.
Answer: The drum matches with the cylinder. The keyboard/harmonium matches with the cuboid. The bell matches with the cuboid. The cube matches with the cube. The cone shape connects with the cone (ice cream cone, party hat). The sphere connects with the ball. The cylinder connects with the pencil or flute. The cone also matches with the cone-shaped object (party hat or carrot).
In simple words: We draw lines to connect each real object on the left to the shape it looks like on the right side.

Exam Tip: Match objects carefully by studying their shape - count faces, edges, and corners to make sure each object goes with the correct solid shape.

Question. If you also have to decorate the following shapes in the same way with stars, ribbon stripes and pompom balls, how many of these items will you need?
Answer:

Exam Tip: Remember - a cube has 6 faces, 12 edges, and 8 corners; a cuboid also has 6 faces, 12 edges, and 8 corners; but a cone has only 1 curved face, 1 edge, and 1 corner (the tip).

Question. Look at the objects and fill the table.
Answer:

Exam Tip: Use your fingers to trace along each shape - faces are the flat or curved surfaces you feel, edges are the lines where two faces meet, and corners are the points where three or more edges come together.

Question. Touch and Tell. Who am I? Collect different objects with variation in faces, corners and edges. Blindfold the child and ask them to pick an object as per the details given by other children. For example, a child may be asked to take out an object with one corner. Similarly, continue with other objects.
Answer:

Exam Tip: In a touch-and-tell game, pay close attention to the number of sharp corners and straight edges you feel - these clues help identify the exact shape faster than trying to guess from texture alone.

Question. Name the objects which have -
Answer:

Exam Tip: When naming objects by their corners, think of real things around you - a ball has no corners, a cone has one sharp point, and a box has eight corners at its vertices.