Dear [Principal's Name],

I am writing this letter to request that extra classes be arranged for chemistry practicals for our class. As you may already know, chemistry practicals are an essential part of our curriculum, and we need to have a thorough understanding of the concepts to perform well in our exams.

However, due to the current situation of the pandemic, our regular classes have been disrupted, and we have missed out on many practical sessions. This has resulted in a lack of understanding of the subject, which will affect our performance in the upcoming exams.

I, therefore, request you to arrange extra classes for chemistry practicals to help us understand the subject better. These classes can be arranged after school hours or during the weekends, so as not to interfere with the regular classes. It will help us to catch up on the missed practical sessions and gain a better understanding of the subject.

I believe that with the help of extra classes, we will be able to perform better in our upcoming exams. I hope that you will consider my request and take the necessary steps to arrange the extra classes as soon as possible.

Thank you for your time and consideration.

Sincerely,

[Your Name]

Application to Principal to arrange extra classes for chemistry practical