Introduction:
When introducing fractions to learners, it is important to use a method that is engaging, visual, and relatable. The best method to achieve this is by using concrete examples from the learners' surroundings. This approach allows students to understand fractions in a practical context and makes the learning process more meaningful and effective.

Explanation:
By using concrete examples, students can see and touch objects that are divided into equal parts, which helps them grasp the concept of fractions more easily. Here is a detailed explanation of why option 'A' is the correct answer:

1. Engaging and relatable:
- When using concrete examples, teachers can bring in real-life objects such as pizzas, cakes, or chocolate bars, which students can relate to. This immediately captures their attention and makes the learning experience more engaging.

2. Visual representation:
- Concrete examples provide a visual representation of fractions. For instance, if a teacher cuts a pizza into 8 equal slices and shares it among the students, they can see that each slice represents 1/8 of the whole pizza. This visual representation helps students understand the concept of fractions more concretely.

3. Hands-on learning:
- By allowing students to interact with objects and physically divide them into parts, they can actively participate in the learning process. This hands-on approach enhances their understanding of fractions and promotes a deeper level of learning.

4. Connection to everyday life:
- Concrete examples from the learners' surroundings help them connect fractions to their everyday life. They can identify fractions in situations such as sharing snacks, dividing their toys, or measuring ingredients while cooking. This connection makes fractions more relevant and meaningful to them.

5. Building a strong foundation:
- Using concrete examples lays a strong foundation for learners to understand more complex concepts related to fractions, such as adding, subtracting, multiplying, and dividing fractions. Once students have a solid understanding of the basics, they can apply their knowledge to solve more advanced problems.

Conclusion:
Introducing fractions to learners using concrete examples from their surroundings is the best method because it is engaging, visually appealing, relatable, and promotes hands-on learning. By connecting fractions to real-life situations, students can develop a deeper understanding of the concept and build a strong foundation for further learning.