The main focus of this essay will be observing low level disruptive behaviour occurring in classrooms and how this has effect on learning also on the teacher. In addition the importance of this observation is to discover the successful strategies that defuse LLD in classrooms and applying to my own teaching and observe how effective those strategies are during my lesson which can be shared to make future decisions based on data collected during this research. A case study will be formed to examine the approaches I can practise to reduce the level of LLD. This case study will involve around using different strategies to diffuse LLD and see which method is most effective diffusing low level disruption. It is clearly shown that teachers use different ways of handling unacceptable behaviours therefore doing a case study at the ways they handle this to sustain good effective lesson will be done. Also, there will be different types of LLD behaviour which will be considered as well.Information will be gathered by creating questionnaires and focus groups with the students. Observation will be based on year 9 set 4 who I will be teaching, to gather a combination of LLD behaviours that occurs. This will take place using each technique in each lesson so that defined data can be collected and then compared. Observations will be taken by same teacher to avoid biased data. This will be collected using a tally chart which will then be transferred to give pictorial demonstration as graphs and bar charts.