Grade 1
  1. Numbers and Counting  1.1. Counting to 10  1.2. Counting to 20  1.3. Counting to 50  1.4. Counting to 100  1.5. Writing Numbers 1 to 10  1.6. Writing Numbers 1 to 20  1.7. Writing Numbers 1 to 50  1.8. Writing Numbers 1 to 100  1.9. Reading Numbers 1 to 10  1.10. Reading Numbers 1 to 20  1.11. Reading Numbers 1 to 50  1.12. Reading Numbers 1 to 100  1.13. Comparing Numbers  1.14. Ordering Numbers  1.15. Odd and Even Numbers  1.16. Number Patterns  1.17. Skip Counting by 2s, 5s, and 10s  1.18. Understanding Zero
  2. Basic Addition and Subtraction  2.1. Understanding Addition  2.2. Addition Facts within 10  2.3. Addition Facts within 20  2.4. Adding Zero  2.5. Adding One More  2.6. Adding Two More  2.7. Adding Three More  2.8. Adding Using Pictures  2.9. Addition Word Problems  2.10. Understanding Subtraction  2.11. Subtraction Facts within 10  2.12. Subtraction Facts within 20  2.13. Subtracting Zero  2.14. Subtracting One  2.15. Subtracting Two  2.16. Subtraction Using Pictures  2.17. Subtraction Word Problems  2.18. Introduction to Doubles Facts  2.19. Introduction to Making 10
  3. Place Value and Number Sense  3.1. Understanding Tens and Ones  3.2. Counting by Tens  3.3. Place Value within 20  3.4. Place Value within 50  3.5. Place Value within 100  3.6. Reading and Writing Two-Digit Numbers  3.7. Comparing Two-Digit Numbers  3.8. Decomposing Numbers
  4. Measurement  4.1. Length  4.1.1. Comparing Lengths  4.1.2. Measuring with Non-Standard Units  4.1.3. Using Standard Units (Inches and Centimeters) in Length  4.2. Weight  4.2.1. Comparing Weights  4.2.2. Heavy and Light Objects  4.2.3. Introduction to Grams and Pounds  4.3. Capacity  4.3.1. Comparing Capacity  4.3.2. Full and Empty  4.3.3. Introduction to Liters and Milliliters  4.4. Time  4.4.1. Telling Time to the Hour  4.4.2. Telling Time to the Half Hour  4.4.3. Days of the Week  4.4.4. Months of the Year  4.4.5. Understanding Yesterday, Today, and Tomorrow  4.5. Money  4.5.1. Recognizing Coins  4.5.2. Counting Coins  4.5.3. Introduction to Dollar and Cents Symbols  4.5.4. Simple Addition and Subtraction with Money
  5. Geometry  5.1. 2D Shapes  5.1.1. Recognizing 2D Shapes  5.1.2. Drawing 2D Shapes  5.1.3. Naming 2D Shapes  5.1.4. Properties of 2D Shapes  5.1.5. Sorting 2D Shapes  5.1.6. Composing Simple Shapes  5.2. 3D Shapes  5.2.1. Recognizing 3D Shapes  5.2.2. Naming 3D Shapes  5.2.3. Properties of 3D Shapes  5.2.4. Sorting 3D Shapes  5.3. Position and Direction  5.3.1. Left and Right  5.3.2. Above and Below  5.3.3. Inside and Outside  5.3.4. Near and Far  5.3.5. In Front and Behind
  6. Patterns and Sorting  6.1. Recognizing Patterns  6.2. Extending Patterns  6.3. Creating Patterns  6.4. Sorting by Color  6.5. Sorting by Shape  6.6. Sorting by Size
  7. Data and Graphing  7.1. Introduction to Data  7.2. Collecting Data  7.3. Tally Marks  7.4. Bar Graphs  7.5. Picture Graphs  7.6. Interpreting Simple Graphs
  8. Fractions  8.1. Understanding Halves  8.2. Understanding Fourths  8.3. Dividing Shapes into Equal Parts  8.4. Identifying Equal and Unequal Parts

Grade 1 → Numbers and Counting ↓


Reading Numbers 1 to 20


Numbers are everywhere. They are part of our daily lives, and they help us understand the world around us. In Grade 1, learning numbers from 1 to 20 is important as these form the basis of many mathematical concepts. Let's learn how to read, understand, and use these numbers effectively.

Numbers from 1 to 10

First, we will start with the numbers 1 to 10. These are the first numbers a child learns and are fundamental to counting, ordering, and comparing.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10

Each number has a specific quantity associated with it. For example, the number 1 represents a single object, and the number 2 represents a pair of objects.

1 2

To make learning fun and understandable, numbers can be taught using objects like apples, crayons or blocks. Seeing and touching objects makes it easier to understand the concept of quantity.

Counting objects

Counting objects is an essential skill related to numbers. Let's learn how to count objects using numbers from 1 to 10.

When you see a group of objects, you can count them by pointing to each object and saying its number out loud. For example, count the following stars:

If you count each star separately, you will get the total number of stars. In this case, there are a total of four stars.

Recognizing numbers in daily life

Numbers are used in various aspects of our day-to-day activities. Here are some examples where numbers appear:

  • Pages of a book.
  • Numbers on the clock.
  • The number of apples you have.
  • Your age.
  • Numbers marked on houses or buildings.

Writing and reading numbers

Knowing how to write and read numbers is as important as knowing how to count them. Each number from 1 to 10 has a specific way of writing it.

Let's look at the process of writing these numbers:

A: 1

Two: 2

Three: 3

Four: 4

Five: 5

Six: 6

Seven: 7

Eight: 8

Nine: 9

Ten: 10

Transition from numbers 11 to 20

Once you're familiar with the numbers 1 to 10, moving on to 11 to 20 is just as simple.

The numbers 11 through 20 follow a similar pattern. The root words change slightly, but they represent higher numbers.

11, 12, 13, 14, 15, 16, 17, 18, 19, 20

Each of these numbers is written and interpreted as follows:

Eleven: 11

Twelve: 12

Thirteen: 13

Fourteen: 14

Fifteen: 15

Sixteen: 16

Seventeen: 17

Eighteen: 18

Nineteen: 19

Twenty: 20

For many learners, understanding numbers beyond 10 can be challenging at first. To make this easier, use repeated counting and illustrative demonstrations.

Practice counting

Practice makes perfect when it comes to counting. Use daily opportunities to count toys, steps, or how many people are in a line. Here are several exercises to improve counting skills:

1. Count the number of apples in a basket.

2. Count your fingers and toes.

3. Count the number of cars you see while driving.

4. Count the stars in the picture you have drawn.

Practice writing numbers

Regular practice of writing numbers is essential to reinforce learning. You can guide children to write numbers using lined paper or tracing worksheets to improve their writing strokes.

Here's a simple approach to writing practice:

1. Start by tracing the numbers from 1 to 20.

2. Slowly start writing the numbers without tracing them.

3. Write the numbers in order and identify the missing numbers in the list.

Use of number lines

The number line is a great tool for visualizing and understanding numbers. It allows children to see the sequence of numbers and compare their sizes.

12345678910111213

Using a number line can also help us understand addition and subtraction as “moving forward” and “moving backward” respectively.

Recognizing numbers in words

It is also important that each number can be recognised when written in word form. This can be practised by matching the numbers to their word forms.

1 - one
2 - two
3 - three
4 - four
5 - five
6 - six
7 - seven
8 - eight
9 - nine
10 - ten
11 - eleven
12 - twelve
13 - thirteen
14 - fourteen
15 - fifteen
16 - sixteen
17 - seventeen
18 - eighteen
19 - nineteen
20 - twenty

Game-based learning

Engaging children in playful activities makes learning fun. Simple games like number bingo, hopscotch, and interactive number apps can motivate children to participate and learn actively.

Conclusion

The numbers 1 to 20 are integral building blocks for more advanced math concepts. Mastering the reading, writing, and understanding of these numbers establishes a strong mathematical foundation. Through consistent practice using visual aids, object counting methods, and day-to-day applications, learners can grasp these concepts intuitively, paving the way for more complex numeracy skills in the future.


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Reading Numbers 1 to 20

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