Hello, young mathematician! Look around your room. You may see a long pencil, a round ball, a flat book, and a bottle that can move in more than one way. Shapes are everywhere.
Caregiver: Read each short instruction aloud. Let the child point, touch, turn, roll, slide, draw, and then say the answer.
This original guide follows the learning ideas in Chapter 2 of NCERT’s Joyful Mathematics for Class 1. It does not copy the textbook story, pictures, or exercise questions.
Words to Know
long
stretches far from one end to the other
a ribbon
round
curved all around, with no sharp corner
a ball or coin
flat
smooth and even, not curved
the face of a book
curved
bent or rounded, not flat
the side of a bottle
roll
move by turning over and over
a ball moving
slide
move along a surface without turning over
a book moving flat
similar
alike in an important way
two round lids
Work on a floor mat with an adult. Place one end of a hard-cover book on a folded towel to make a very gentle slope. Use a soft ball, smooth round crayon, empty plastic bottle, paper cup, and small book. Put one object at the top and let go without throwing. Make three groups: rolls, slides, and does both. Turn an object to another side and test again. Use only light, unbreakable objects. Keep everything away from stairs, plugs, glass, and walkways. (5-10 min)
Your Learning Plan
- Find long and round objects around you.
- Turn an object and look from another side.
- Test a few safe objects by rolling and sliding.
- Sort the objects and explain your rule.
1. What Looks Long? What Looks Round?
An object looks long when it stretches far from one end to the other, like a long ribbon. A rope, ribbon, straw, and pencil are common examples. Long does not always mean big. A thin thread can be long, while a thick button can be short.
An object may look round when its edge curves around without a sharp corner. A coin looks round when you see its flat face. A plate and a lid may also look round from above. A soft ball is rounded all around.
Use real objects when you can. Point to the part that makes you say long or round. Your reason matters. For more pointing-and-position practice, revisit Finding the Furry Cat! Class 1 Mathematics.
Situation: A child sees a skipping rope and a coin on a mat.
- Look from one end of the rope to the other end.
- The rope reaches across much of the mat.
- The coin does not reach far from one side to the other.
Answer: The skipping rope is the long object.
Situation: There is a ball, a book, and a pencil box.
- Look for an object with no sharp corners all around it.
- Turn the ball gently in your hands.
- Its curved shape can face you from every side.
Answer: The ball is round.
2. Turn It and Look Again
The same object can look different when you turn it. A paper cup looks taller from the side. Its top rim looks round when you look from above. A coin looks round from the front, but its edge looks thin from the side.
This does not mean one answer is wrong. Tell your viewing place: “I looked from the top” or “I looked from the side.” Then another person can understand your idea. Mathematicians look carefully and explain what they notice.
Situation: A paper cup stands on a table.
- Look at the cup from the side. It looks tall.
- Look carefully from above. The rim looks round.
- Tell which view you used when you describe the cup.
Answer: The cup can look tall from the side and round from the top.
Round and ball-shaped are not always the same. A coin looks round from the front, but it is not shaped like a ball. Say what you see and which side you are looking at.
3. Which Objects Have a Similar Shape?
Objects go together when they share an important shape. A ball and an orange are both rounded all around. A paper cup and a drinking glass both have a round rim and tall sides. A book and a small box both have flat faces and corners.
Colour does not decide the shape. A red ball and a blue ball still have a similar shape. Size does not decide it either. A tiny bead and a large soft ball can both be rounded. Focus on the shape, not the colour or size.
Sometimes an object has more than one useful shape feature. A smooth round pencil or crayon is long and may also roll. A pencil with flat sides may bump and stop. Describe the feature you are using instead of forcing every object into only one group.
4. Curved and Flat Parts Help Objects Move
A curved part can turn against a surface. That helps many objects roll. A flat part stays against the surface without turning over. That helps many objects slide. The push should be gentle so you can watch what happens.
A ball usually rolls because its outside is curved all around. A book usually slides when it lies on a flat face. A bottle or paper cup can do both. It may roll on a curved side and slide on a flat base.
The surface also matters. An object may move easily on a smooth mat and more slowly on a rough cloth. In this lesson, compare objects on the same safe surface so the shape is the main change.
Situation: A soft ball and a book are placed on a smooth mat.
- Give the ball a very gentle push. Its curved surface turns as it moves.
- Give the book a gentle push while it lies flat. Its flat face moves along the mat.
- Use the action words roll and slide.
Answer: The ball rolls. The book slides.
Situation: An empty plastic bottle is closed and placed on a mat.
- Lay the bottle on its curved side and push gently. It can roll.
- Stand the bottle on its flat base and push gently. It can slide.
- The part touching the mat changes what the bottle does.
Answer: The bottle can roll on its curved side and slide on its flat base.
5. Sort, Check, and Explain
Sorting means making groups by one clear rule. You can sort by what an object looks like: long, round, flat-faced, or curved. You can also sort by what it does: rolls, slides, or does both.
Say the rule before you begin. Test every object in the same way. If an object fits two groups, explain why. An empty bottle can go in the “does both” group because it rolls on one part and slides on another part.
After sorting, check: Did I test every object? Did I use the same gentle slope? Can I explain one choice in a full sentence? Tell your caregiver why you chose each group.
Practice Time
Try each prompt before opening the answer. You may point, speak, draw, or write.
Practice 1. Point-and-say: Which is long – a ribbon or a button?
Answer: The ribbon is long.
Practice 2. Which looks round from every side – a soft ball or a book?
Answer: The soft ball looks round from every side.
Practice 3. Draw one long object and one round object. Name them.
Answer: Answers may differ. A long pencil and a round ball are good examples.
Practice 4. A coin lies flat on a table. Look from above. What shape does its outline make?
Answer: Its outline makes a round shape.
Practice 5. Gently push a ball on a mat. Does it roll or slide?
Answer: It rolls.
Practice 6. Gently push a book while it lies flat. Does it roll or slide?
Answer: It slides.
Practice 7. Can an empty plastic bottle do both? Tell how.
Answer: Yes. It can roll on its curved side and slide on its flat base.
Practice 8. Sort these objects into three groups: ribbon, ball, coin, book. Use Long, Round, and Flat/Other.
Answer: Long group: ribbon. Round group: ball and coin. Flat/Other group: book.
Shape Hunt: Find one new round thing and one long thing at home today.
Continue Learning
- Practise position words with Finding the Furry Cat!
- Explore Class 1 Mathematics guides
- Browse PrincipalSaab Study Notes
- Next in Joyful Mathematics: Mango Treat (Numbers 1 to 9)