Class 1 Maths - CBSE
What is Long? What is Round?
The chapter What is Long? What is Round? introduces Class 1 CBSE students to basic geometric shapes and spatial understanding. Through fun activities and everyday examples, young learners explore the physical properties of objects by observing how some things slide and others roll. They learn to identify flat and curved surfaces, distinguishing between long objects and round objects. This foundational chapter builds early observation and sorting skills, which are essential for geometry in board exams, helping students connect classroom mathematics to the real world around them.
Start Learning FreeKey Concepts
Rolling Objects
Objects that have curved surfaces, like balls and marbles, can roll easily on the ground.
Sliding Objects
Objects that have flat surfaces, like books and boxes, slide when pushed instead of rolling.
Long Objects
Objects that have greater length compared to their width, such as pencils and bats.
Round Objects
Objects shaped like a circle or sphere with no sharp corners, such as coins and wheels.
Flat and Curved Surfaces
Flat surfaces help objects stack or slide, while curved surfaces help objects roll.
Important Formulas
Board Exam Info
In CBSE Class 1 Mathematics, this chapter typically carries 4 to 6 marks. Common question types include matching objects to their properties (rolling vs. sliding), identifying long and round shapes, and circling items that can roll.
Frequently Asked Questions
Can an object both roll and slide?
Yes! Objects like a cylinder (such as a water bottle or a coin) have both flat and curved surfaces, so they can both roll and slide.
Why does a ball roll while a box slides?
A ball has a curved surface that lets it turn over and over in any direction, making it roll. A box has flat surfaces that stay flat against the floor, making it slide.
How do I identify if an object is long or round?
Look at its shape! If it is stretched out like a pencil, it is long. If it is circular like a wheel or a ball, it is round.
Learn What is Long? What is Round? with Your AI Tutor
10 different ways to study this chapter. Free for 3 chapters per day.
Lecture
Key Points
Interactive
Quiz
Flashcards