“…Reviewing the related literature and the empirical studies in the same field (e.g., Khedr, 2012;Talafha, 2012;Al-Qahtani, 2002;Wade, 2000), the researchers designed a content analysis checklist that is based on four domains (social, environmental, cultural and economical) and identified (35) service-learning projects that were checked in the textbooks under study. Some paragraphs were deleted, based on the recommendations of some experts after verifying their validity.…”