Classroom climate is an important factor in the teaching and learning process. Both physical and psychological aspects of the classroom should be conducive to learning. Less number of students, student-teacher ratio and undivided attention of the teachers have a great influence on students' academic performance. The study is conducted to find out whether gender has any impact on the performance of teachers in classrooms and their qualifications based on the subject they studied have any influence on their teaching. Experience enhances everybody's learning. So, the teaching experience is an important factor that should be considered in managing a class. This study is done with 150 teachers selected from 10 higher secondary schools from the Kancheepuram district. A simple random technique is used to collect the sample. The teaching experience is classified as below 5 years and above 5 years. The tool, Classroom climate inventory, is standardised by the investigator. T-test and Correlation were used to analyse data.