F ormative assessment competencies are a vital part of geography pre-service teacher preparation because it allows them to acquire knowledge and skills that are essential in their professional working life as it helps them to assess their students' progress during the class time. This experimental study aims to improve Formative assessment competencies by using a training program based on Standards for Teacher Competence in Educational Assessment and active learning strategies. It also investigates geography pre-service teachers' competencies of formative assessment using two tests: test of cognitive competencies and test of skills competencies for formative assessment. Confirmatory   Cronbach's Alpha and Pearson Correlation were used to measure reliability for each test; Intrinsic Validity, Face Validity and Content Validity were used to measure validity for each test also t test was used to measure the results of each test. The results revealed that there is great effect of the training program on improving cognitive and skills competencies of formative assessment for geography pre service teachers.