Arab Educational Information Network

The study aimed at defining possession level of scientific and engineering practices in the light of the Next Generation Science Standards (NGSS) by secondary stage science teachers in Saudi Arabia. The study sample consisted of (75) science teachers at secondary stage in Yanbu governorate. To collect the data, a questionnaire was prepared and consisted in its final shape of (50) indicators distributed among (8) scientific and engineering practices. To be certain of the validity of the questionnaire, it was presented to a group of referees, and its reliability was calculated by Cronbach alpha coefficient to be (0.96). The results of the study revealed that; 1) the possession level of scientific and engineering practices was within the medium degree with average (2.65). 2) The practices; (asking questions and defining problems), (analyzing and interpreting data) and (obtaining, evaluating, and communicating information) obtained a medium degree of possession. 3) The practices: (developing and using models), (planning and carrying out investigations), (using mathematics and computational thinking), (constructing explanations and designing solutions) and (engaging in argument from evidence) obtained a small degree of possession. 4) There were no statistically significant differences among means responses of the study sample members due to gender and instructional experience variables. 5) Several recommendations were suggested regarding to the results of study. (Published abstract)