Improving concentration while studying is essential for Class 3 students to enhance their learning experience. Here are some effective strategies to help improve concentration in class:

1. Create a Suitable Study Environment:
- Find a quiet and well-lit area to study, away from distractions like noise, TV, or mobile devices.
- Keep your study area organized and free from clutter, which can help reduce distraction and promote focus.

2. Manage Time Effectively:
- Create a study schedule or timetable to allocate specific time slots for different subjects or tasks.
- Break your study sessions into shorter periods, such as 20-30 minutes, followed by short breaks to maintain focus.

3. Set Clear Goals:
- Clearly define what you want to achieve during your study session.
- Break down your goals into smaller tasks to make them more manageable and achievable.

4. Engage in Active Learning:
- Instead of passively reading or listening, actively engage with the study material.
- Summarize important points in your own words, create flashcards, or teach the concepts to someone else.

5. Use Interactive Learning Tools:
- Utilize educational resources like interactive apps, educational videos, or online quizzes to make learning more engaging and enjoyable.

6. Practice Mindfulness:
- Take a few minutes before starting your study session to practice deep breathing or simple mindfulness exercises.
- Focus on the present moment and let go of any distracting thoughts or worries.

7. Stay Physically Active:
- Engage in regular physical activities like exercise or sports to improve overall focus and concentration.
- Take short breaks during study sessions to stretch or move around to refresh your mind.

8. Get Sufficient Rest:
- Ensure you get enough sleep each night to help your brain recharge and improve concentration.
- Avoid studying for long hours without breaks, as it can lead to mental fatigue.

9. Stay Hydrated and Eat Nutritious Meals:
- Drink plenty of water throughout the day to stay hydrated, as dehydration can affect cognitive function.
- Eat a balanced diet rich in fruits, vegetables, and whole grains to provide essential nutrients for optimal brain function.

Conclusion:
By creating a suitable study environment, managing time effectively, setting clear goals, engaging in active learning, using interactive tools, practicing mindfulness, staying physically active, getting sufficient rest, and maintaining a healthy diet, Class 3 students can significantly improve their concentration while studying. These strategies will help them stay focused, retain information better, and enhance their overall learning experience.