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 ↓


Counting to 20


Counting is one of the most important skills in early math. It is the first step that helps children understand numbers and basic arithmetic. In grade 1 math, children learn to count efficiently up to 20. This process involves understanding the sequence of numbers, recognizing numbers, and associating numbers with quantities.

Understanding the numbers

Before a child learns to count effectively, it is important for him to understand what numbers are. Numbers are symbols that represent quantities. For example, the number 1 represents one object, the number 2 represents two objects, and so on.

The numbers from 1 to 10 look like this:

1 2 3 4 5 6 7 8 9 10

Counting order

It is very important to understand the correct order of numbers. When children can remember numbers in the correct order, they are ready to tackle more complex arithmetic. Counting can start from any number and go forward or backward.

The basic sequence up to 20 is as follows:

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20

It helps to practice counting not only verbally but also in writing, as this strengthens number recognition, memory, and sequencing abilities.

Recognizing numbers

Another basic element of counting is recognizing numbers when they see them. Using visual aids such as number charts and blocks can be very helpful.

N You M B E R C H A R Tea 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Linking numbers to quantities

It is not just important for children to say the numbers in order or to recognise them. It is equally important to understand that these numbers relate to real quantities. For example:

  • When we say '3' it means 3 things.
  • When we count '5' it is 5 objects.

We can use objects like blocks, beads or even fruits to practice counting. This helps children associate the number with the quantity it represents.

Counting exercises

Practicing counting in different ways reinforces a child's learning. Here are some exercises:

Counting objects

Take 20 small objects like buttons or coins. Ask the child to count one by one how many there are. This tactile experience helps them associate the numbers with real objects.

Writing numbers

Ask the child to write the numbers from 1 to 20 on a piece of paper. Writing helps in remembering the numerical sequence. It also improves their fine motor skills.

Making number cards

Make cards with numbers from 1 to 20. Shuffle the cards and ask the child to arrange them in the correct order. This helps in recognising numbers and their order.

Counting steps

Encourage your child to count his steps as he walks. This can be a fun game and a practical way to practise counting.

Numbers game

Play games that involve numbers. For example, board games that require them to count the spaces, or digital apps designed to teach counting numbers. These make learning a fun experience.

Understanding big numbers

After mastering the numbers from 1 to 20, children can gradually be introduced to bigger numbers like 21, 30, and so on. This is done to familiarise them with the concept of tens and ones.

For example, the number 21 has 2 tens and 1 unit.

21 = 2 tens and 1 unit
25 = 2 tens and 5 units

Introducing place values such as tens and ones lays the foundation for addition and subtraction skills.

Conclusion

Counting to 20 is an important milestone in early math education. It lays the groundwork for understanding numbers and math as a whole. Children not only learn to speak numbers, but also to recognize them, associate them with quantities, and appreciate their order and value. By using a variety of techniques, including writing, visual aids, and practical exercises, we can make learning to count a fun and engaging experience.

Through regular practice and reinforcement, children will develop confidence and a stronger grasp on counting, allowing them to succeed in more advanced math concepts.


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Counting to 20

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