Counting is the foundation of all mathematical operations. It is an essential skill that we use in our daily lives, from counting money to telling time. Counting is the process of determining the number of objects in a set or group.

## Objectives:

- Understand the concept of counting
- Count up to 100
- Practice counting by twos, fives, and tens
- Use counting in real-life situations

**Counting Numbers:** 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100.

**Counting by Twos:** 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100.

**Counting by Fives:** 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100.

**Counting by Tens:** 10, 20, 30, 40, 50, 60, 70, 80, 90, 100.

## Real-Life Examples:

- Counting the number of apples in a basket
- Counting money
- Telling time on a clock
- Counting the number of people in a room
- Counting the number of days in a week

## Practice Exercise:

- Count from 1 to 50.
- Count by twos from 2 to 20.
- Count by fives from 5 to 30.
- Count by tens from 10 to 50.
- Count the number of pencils in a box.

## Types of Counting There are different types of counting, including:

**Counting by Ones:** This is the most basic form of counting, where we simply add one to the previous number to get the next number in the sequence.

For example, 1, 2, 3, 4, 5, and so on.

**Counting by Twos:** This involves adding two to the previous number to get the next number in the sequence.

For example, 2, 4, 6, 8, 10, and so on.

**Counting by Fives:** This involves adding five to the previous number to get the next number in the sequence.

For example, 5, 10, 15, 20, 25, and so on.

**Counting by Tens:** This involves adding ten to the previous number to get the next number in the sequence.

For example, 10, 20, 30, 40, 50, and so on.

## Counting Strategies There are different strategies that can be used for counting, including:

**Finger Counting:** This involves using fingers to represent numbers. For example, to count up to 5, we can hold up five fingers on one hand.

**Group Counting:** This involves grouping objects into sets and counting the number of sets. For example, if we have 20 pencils and we group them into sets of 5, we can count that we have 4 sets of 5 pencils, which gives us a total of 20 pencils.

**Skip Counting:** This involves counting by a specific number, such as twos, fives, or tens, to get to the desired number quickly.

Counting is an essential skill in mathematics that is used in many areas of study. The different types of counting and the strategies for counting, you can improve your ability to solve mathematical problems and tackle everyday tasks that involve counting.