The study analyzed practitioners' perceptions about professional learning practices at higher secondary level in public and private sector. The components of professional learning practices were teaching learning process, students' development, teachers' professional relationship and service, institutional development and personal and professional growth. The objectives of this paper focused on checking practitioners' insights regarding above given components. The sample of the study were 633 practitioners. Major findings were that there was no major difference in perceptions of both sector teachers about teaching learning and students' development. The practitioners of private schools showed more interest in professional relationship, institutional development, personal and professional growth. It is recommended that institutional administration may make it mandatory for practitioners to prepare professional teaching portfolio and may design professional development courses about building their competency in classroom management. The administration of public schools may plan professional learning communities and knowledge sharing societies through launching collaborative campaigns.

The researcher aimed at investigating the effects of overcrowded classes on the teaching learning process at secondary level. By nature, this research study was descriptive so survey research design was employed and a closed ended questionnaire having twenty items related to the research problem were developed on five point Likert’s scale for the teachers (Senior Science Teachers) and the 10th grade students of government high schools from three tehsils of district Nankana Sahib. Pilot study was conducted to achieve the reasonable face and content validity and reliability, expert opinions and testretest techniques were used and 0.891 Pearson’s product moment was assured. One hundred (100) questionnaires for SSTs both males and female and 120 questionnaires for students both boys and girls were administered personally and with the help of some friends, six principals both of male and female were interviewed using structured interview schedule data collection technique and data was collected. On the basis of analysis and interpretation of data, indiscipline classes due to overcrowdings affect the teaching learning process badly; the performance of the students is not easily assessed in overcrowded classes and teachers are unable to interact with students easily in overcrowded classes were the conclusions of this research study. The researcher suggested that the government must make it possible to implement the law of recommended class size and reduce the problem by building more classrooms for the students at secondary level. Policy makers may formulate the policies for the effective assessment and evaluation process.