In order to help enrich your experience while in Jordan, please find below two links which points to a selection of agencies with possible volunteer opportunities.

Directory of Agencies. http://www.pvo.net/usaid/index.html
Contains large registry of NGO’s registered with the USAID; select Jordan and the specific sector

Miscellaneous. http://www.seejordan.org/voluntourism/index.html
Features three major organizations promoted by Jordan’s Tourism Board