ABSTRACT
The main purpose of the study was to investigate factors affecting academic performance of primary pupils at Lang’ata division Nairobi province, Kenya The specific objectives of the study were to determine; whether Discipline of students affects academic performance of Lang’ata Division pupils, whether Quality of teachers affects academic performance of Lang’ata Division pupils and to determine whether Facilities in schools affects academic performance of Lang’ata Division pupils The methods used for data collection were questionnaires to the students and interviews with the teachers The study found out that discipline was among the reasons why pupils perform poorly in class. It was established that pupils who are indiscipline were likely to perform poorly in school and also drop out of school and 45% of the respondents agreed to that. 75% of the respondents agreed that teachers who are well paid perform better than those who are underpaid. 89% of the respondents agreed that lack of enough reading and learning materials is a hindrance to pupil’s academic achievement. The study recommended that the government and policy makers should identify the reasons why pupils perform poorly in school and devise means to iron out the problem. Teachers should be included in plans to improve on the academic performance of pupils because they contribute greatly to the achievement of a child