Presentations are simple and should not be formal. It's always best to speak from the heart and to put a 'face' on the organization.  Be sure your charity is recognized as a 501(c)(3) organization.  If you're not sure, check its website or ask them, or you can check guidestar.org to be sure.  Some suggestions to cover:

• What is the name of the organization?
• Where is the organization located?  (Remember...it needs to serve locally)

• What purpose does the organization serve? (Who do they serve, what do they do, etc.) 
• How would the organization benefit from our donation?
• How will the funds be used?
• If chosen, to whom would the group make a check payable to?