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Full Project – EFFECT OF BIOLOGY PRACTICAL ACTIVITIES ON ACADEMIC ACHIEVEMENT OF SENIOR SECONDARY SCHOOL STUDENTS IN BIOLOGY IN SHOMOLU LOCAL GOVERNMENT AREA OF LAGOS STATE

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CHAPTER ONE

INTRODUCTION

Background of the Study

Biology is a branch of science that deals with the study of living things, which includes human-beings (Michael, 2012). Biology has many branches which include; zoology, botany, ecology, genetics, morphology, anatomy, physiology, histology, microbiology, evolution, cell biology to mention but a few. Many societal issues are biology-based. These include biodiversity, genetically modified organisms, reproductive technologies, prolongation of life, food production, tourism industry (biological gardens) and processing industries. All of these issues have involved improvements that meet human needs and so this twentieth century has been considered as ‘the age of biology’ (Reiss, 1998). The knowledge of biology helps in checking environmental degradation such as desertification, erosion, water hyacinth, land, air and water pollution.

Science is a special type of discipline with peculiar characteristics, the prominent among which is the approach through which knowledge is sought. This approach is known as scientific method. Scientific method is a logical, rational and systematic process by which knowledge in science is acquired. The steps involved in scientific method are observation, hypotheses, predictions, experimentations, conclusion and host of others (Ezeh, 2013). Science is both a process (scientific method) and a product (knowledge, fact and principles) (Ezeh, 2013). Both the process and product of science are acquired through education and this is specialized type of education such as science education. Science plays important roles in the society because it relates to our daily life and career. The importance of science in our society made the Federal Government of Nigeria, through the Federal Ministry of Education to introduce science subjects in the nation’s secondary school curriculum. Biology is one of such subjects introduced.

The cardinal objectives of biology education are to prepare students to acquire: adequate laboratory and field skills in biology; meaningful and relevant knowledge in biology; ability to apply scientific knowledge to everyday life in matter of personal and community health and agriculture; lastly reasonable and functional scientific attitudes (Federal Ministry of Education, 2004). Despite the importance of biology, students’ achievement in the subject from West African Secondary School Certificate Examination (WASSCE) has been poor (Glasson, 2009). Available data on students’ performance in biology in School Certificate revealed that on the average, more than 80 percent of students scored below credit level in the past three years in the WASSCE; the aspects of biology which students find difficult in WASSCE are practical questions on food test, examples carbohydrates, proteins and fats/oils, this indicates that students lack basic practical principles such as observation, and interpretation of the specimens provided for the examination (WAEC Chief Examiners Report, 2011, 2012 & 2013). Enebechi (2009) stated that some biology teachers fail to conduct biology practical along-side every topic treated during lessons, until a few days to examination when they will use WAEC specimens to conduct practical for their students. Eze (2011) inferred that practical work is a unique strategy of teaching and learning of biology because it enables science students to observe and manipulate materials to demonstrate certain aspects of the subject matter, which have been learnt in the class through lectures, discussion and textbooks.

Researchers have seen the need to make teaching and learning interactive and learner-centered. According to Adesoji (2006) and Offiah (2007), poor teaching methods such as

lecture and demonstrations used by secondary school teachers without involving students have been found to contribute to poor achievement in biology.

Statement of Problem

In Nigeria, students’ achievement in secondary school biology has not been encouraging. In spite of the desire for technological development, which needs biology education there is persistent poor academic achievement of students in the subject, particularly in practical biology. So many factors can be attributed to students’ poor achievement in biology practical; they include teachers’ use of inappropriate instructional approaches, lack of adequate laboratory facilities, poor organization of Biology practical activities, lack of commitment to Biology practical activities by both teachers and students, partial or total absence of laboratory, lack of qualified biology teachers and mode of Biology practical activities that are used in biology laboratory. Studies have shown that teachers use mostly teacher-centred approaches in carrying out Biology practical activities.

The inappropriate instructional approaches used by Secondary School biology teachers, tend to raise doubts about the possibility of realizing the objectives of biology education in Nigerian secondary schools as stated in the National Policy on Education (Federal Ministry of Education, 2004). Most instructional approaches such as lecture and demonstration used in teaching biology in the classroom or laboratory, promote rote learning and lack of opportunity for students to manipulate materials and reflect on what they do during teaching and learning processes. Students’ interaction during practical activities in the laboratory could play a key role towards concretizing learning. Among all the problems that contribute to students’ poor achievement in practical biology the researcher is interested in the mode of Biology practical activities and its effects on students’ achievement in biology. The problem of this study stated in question forms: what is the effect of group and individual work on students’ achievement in biology? Is there any difference in academic achievement of male and female students who learning practical biology through group and individual Biology practical activities?

Purpose of the Study

The main purpose of this study is to investigate the effects of biology practical activities on academic achievement of senior secondary school students. Specifically the study investigated;

the effects of group and individual Biology practical activities on students’ achievement in biology
the influence of gender on the mean achievement scores of students in biology when they are exposed to group or individual Biology practical activities
the interaction effect of gender and mode of Biology practical activities on students’ mean achievement score in biology.

Research Questions

The following research questions guided this study

What are the mean achievement scores of students exposed to group and individual Biology practical activities in biology?
What is the influence of gender on the mean achievement scores of students in biology when they are exposed to group or individual Biology practical activities?
What is the interaction effect of gender and mode of Biology practical activities on students’ mean achievement scores in biology?

Research Hypotheses

The following null hypotheses were posed to guide this study and were tested at P<0.05 level of significance

HO1: There is no significant difference in the mean achievement scores of students taught biology using group and those taught using individual Biology practical activities

HO2: There is no significant difference in the mean achievement scores of male and female students taught biology using group or individual Biology practical activities

HO3: There is no significant interaction effect of gender and mode of laboratory activity on students’ mean achievement score in biology

Significance of the Study

This study has both theoretical and practical significance. Theoretically, this study is anchored on Piaget’s cognitive constructivist learning theory and Vygotsky’s Social constructivist learning theory. Piaget emphasized that students should learn by doing. Piaget’s cognitive constructivist learning theory is related to the present study which is the effect of mode of Biology practical activities on students’ achievement in biology, because, Biology practical activities encourages student’s active engagement in practical activities. In social constructivist theory, Vygotsky emphasizes on learning in a social context which is what group Biology practical activities is associated with. Vygotsky’s theory is related to the present study which is effect of mode of Biology practical activities on student’s achievement in biology because it supports the view that in laboratory, students interact with the materials or with one another in the course of practical work. Hence the result of this study will help to validate the theories.

Practically, the following people will benefit from the findings of this study; students, biology teachers and the curriculum experts. The result of the study could enable the students realize the importance of group and individual Biology practical activities situations in the effort of learning biology concepts. It could also help the students to become knowledgeable in the following areas: communication, problem-solving, self-confidence and critical thinking. These are knowledge they are expected to acquire from practical activities which could lead to students’ improvement on their academic achievement.

To the curriculum experts and science educators, the findings of the study could form a basis for introducing laboratory innovations in teaching at all levels to promote practical based learning in schools and even in our teacher education programmes.

The findings of this study will be of help to science teachers as it will enable them understand the right mode of Biology practical activities in teaching and to help the students to understand biology concepts with the abilities of carrying out practical work successfully. The teachers will realize that biology concepts are not taught in isolation but should be incorporated into practical work to maximize the achievement.

Scope of the Study

The study is on the effects of mode of Biology practical activities on students’ achievement in biology in Shomolu Local Government Area of Lagos State. The choice of the area is because of poor achievement of students in biology in the area. The study is delimited to SS1 students in senior secondary schools in the area. The content scope of the study is food substances (such as carbohydrates, proteins, fats and oils and enzymes) under animal nutrition. The choice of this content is because it lends itself to Biology practical activities, which is the most important aspect of this study. The content is found in the SS1 biology curriculum (Federal Ministry of Education, 2008).

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