Dear [Teacher's Name],

I trust this letter finds you well. I am writing to inform you about my son, [Son's Name], who may be absent from school on the dates [Date 1] to [Date 2] at JS Ideal School. Unfortunately, he is facing some unavoidable circumstances that compel him to miss school during this period.

I kindly request your understanding and support during his absence. [Son's Name] is committed to maintaining his academic progress, and we will ensure that he catches up on any missed assignments promptly. We value his education greatly and appreciate your cooperation in facilitating a smooth transition upon his return.

Should there be any coursework or material he needs to make up, please advise us accordingly. We are more than willing to collaborate with you to ensure he stays on track with his studies.

Thank you for your understanding and cooperation in advance. We appreciate the dedication and hard work you put into shaping our children's futures.

Best regards,
[Your Name]
[Your Contact Information]