📘 Class 1 Mathematics Notes (With Explanation)

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📌 1. Numbers (1 to 100)

Children learn to count, write, and recognize numbers from 1 to 100.

Counting: Practice counting aloud from 1 to 100.

Writing Numbers: Children should be able to write numbers neatly in order.

Number Names (1 to 10):

1 – One

2 – Two

3 – Three

4 – Four

5 – Five

6 – Six

7 – Seven

8 – Eight

9 – Nine

10 – Ten

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📌 2. Before, After, and Between Numbers

These help children understand the order of numbers.

Before Number: The number that comes just before.

Example: Before 6 is 5

After Number: The number that comes just after.

Example: After 6 is 7

Between Numbers: The number that lies between two numbers.

Example: Between 4 and 6 is 5

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📌 3. Comparison of Numbers

Helps children compare two numbers using symbols:

Greater Than ( > ):

8 > 5 means 8 is more than 5

Less Than ( < ):

3 < 6 means 3 is less than 6

Equal To ( = ):

4 = 4 means both numbers are the same

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📌 4. Addition

Addition means putting two or more numbers together to get the total.

Example: 2 + 3 = 5

Children can use fingers, sticks, or pictures to understand.

Words used: add, total, plus, together.

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📌 5. Subtraction

Subtraction means taking away one number from another to find out what is left.

Example: 6 − 2 = 4

Children can use real objects (like pencils or toys) to learn.

Words used: minus, left, take away.

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📌 6. Shapes

Children learn to identify and name basic 2D shapes.

Circle – Round shape (like a coin)

Square – All sides equal

Rectangle – Opposite sides equal

Triangle – 3 sides and 3 corners

Ask children to find shapes in their surroundings (e.g., a clock is a circle).

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📌 7. Patterns

Patterns are repeated arrangements of objects, colors, numbers, or shapes.

Example: 🍎🍌🍎🍌 – What comes next? (🍎)

Children should recognize and complete simple patterns.

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📌 8. Measurement (Introduction)

Children learn basic comparisons:

Big and Small – A watermelon is big, a grape is small.

Tall and Short – A tree is tall, a bush is short.

Heavy and Light – A rock is heavy, a paper is light.

These help children compare sizes and weights.

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📌 9. Time (Basic)

Children learn about the concept of time in a simple way.

Parts of the Day: Morning, Afternoon, Evening, Night

Day and Night: Recognizing what we do during day vs night

Days of the Week:

Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday

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📌 10. Money (Introduction)

Children get familiar with Indian currency.

Recognize coins: ₹1, ₹2, ₹5, ₹10

Recognize notes: ₹10, ₹20, ₹50, ₹100

Understand the use of money for buying and selling.

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📌 11. Data Handling (Introduction)

Children learn how to collect and organize simple data.

Example: Count how many red, blue, and green balls there are.

Use tally marks or simple charts to show data.

Helps develop observation and classification skills.

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🔔 Note for Teachers/Parents: Use visual aids, real-life objects, and fun games to make learning maths enjoyable and engaging for children.

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