Abstract This study investigated the difficult biology topics as perceived by secondary school students
in Nkanu East Local Government Area of Enugu State. Descriptive survey research design was
adopted in the study. Population for the study: 5 secondary schools in Nkanu East Local
Government Area was used. The sample size for the study was 100 biology students. Purposive
random sampling technique was adopted. A structured questionnaire designed by the
researcher which was face and content validated by two experts in biology education and
measurement and evaluation department in Enugu State University of Science and Technology
were used to collect data for the analysis. The reliability of the instrument was determined
using Cronbach Alpha and reliability coefficient of 0.824 was obtained. Arithmetic mean was
used to analyze the data collected for the study. The findings revealed that genetics, evolution
and the cell and its environment are the topics identified as difficult to learn in biology.
Students also identified lack of adequate experiment, allocated time and attention, as factors
responsible for the identified topics difficult to learn in Biology. Again, students agreed that
regular practical work is one of the ways of improving their difficulties in learning the topics
identified difficult to learn in biology. Based on the findings, the researcher recommends that
government should employ qualified and experienced biology teachers for effective teaching
and learning of biology in secondary schools.
Keywords: Biology, Difficulty, Secondary School, Teaching, Learning.