AU - القسيم، محمد محمود AB - The paper aims to examine the complacent instructional practices among teachers of sciences at the middle level in Saudi Arabia. To achieve the goals of the study, a survey is used to explore the opinions of (41) educational supervisors and teachers of sciences. The survey ended up with a list that included 99 practices of various types of complacency, recklessness, and indifference. Moreover, the list has been developed in a form of a scale, then administrated to (73) educational supervisors to identify their evaluation of these practices. Results revealed that the overall complacency practices level was (high). It was also high on three dimensions: (evaluation; planning and preparation for the lesson; and using learning sources and employing the supporting activities). However, the other three dimensions: (commitment, attendance, punctuality and self-improvement; lesson-implementation; organizing students, dealing with them and following them); were average on the scale. Finally, the results indicated there were no significant differences over all complacency practices level due to gender variable (male-female). (Published abstract) http://search.shamaa.org/abstract_en.gif OP - ص ص. 89-162 T1 - تقييم الممارسات التدريسية التساهلية لدى معلمي ومعلمات العلوم في المرحلة المتوسطة وفق تقديرات المشرفين التربويين والمشرفات بالمملكة العربية السعودية [مقال] UL - 2 https://units.imamu.edu.sa/deanships/SR/Units/Vice/Magazines/Documents/T%2020%20J%20002.pdf محتوى العدد (PDF)