Dear Mr or Mrs ... While going through the latest volunteering positions, I came to know you are looking for a volunteer photographer who can learn photography to children.I have always believed in volunteering for a good cause. [Therefore, when you go through my resume you will come t know that] I have vast experience in [teaching] photography. For the same reason, I would be more than glad to offer my knowledge and experience to such a good cause. [Your resume- If you want to include your resume] Therefore, I would love to be a part of [organization name]. I hope my qualifications merit to your consideration. sincerely, [your name] I hope you find it useful. If you need more help (for writing you resume), just let me know.

It's quite difficult to answer without asking you lots and lots of questions but essentially you need to mention any experience/qualifications you have for working with children, and your knowledge/qualifications of photography. It also depends somewhat upon the organisation you are applying to and if this is an existing program. Dear ..............(YOU CAN SAY SIR/MADAM, OR JUST PUT ORGANISATION NAME, BUT A REAL NAME IS BETTER) I wish to volunteer as a children's photography tutor with your organisation in .....(LOCATION)... I have been studying photography for (?) years, (MENTION ANY QUALIFICATIONS) and have included some examples of my work. PUT IF YOU HAVE EXPERIENCE OF WORKING WITH CHILDREN/FAMILY CHILDREN/SIBLINGS. You could then speak about how you feel photography will help the children they work with and what you personally could bring to the role. If you have a CV you could include that too. Good luck, and don't forget 'student of photography' doesn't necessarily mean formal student. So from when you consider you began to really learn the craft.

I would like to volunteer with your organization to teach photography skills to children. OR I would like to volunteer with your organization to teach children about photography.

You would like to volunteer with their organization to teach photography skills to children.

Exactly