Impact of a Developed Computer-Based Instructional Package on Student Performance in Technical Drawing

Abstract

The study developed a Computer-Based Instructional Package for teaching Technical Drawing in Osun State Colleges of Education; and investigated the effect of the Computer Based Instructional Package (CBIP) on the academic performance of students of Technical Drawing. It also determined the effect of the package on the retention ability of learners; and assessed the effect of the CBIP on students’ attitude towards Technical Drawing. The research was conducted with 100 National Certificate in Education (NCE) II pre-service teachers selected from the two public colleges of Education in Osun state. The two colleges were selected based on availability of Technical Drawing Studio and those that have been offering Technical Drawing for a period of five years and above. Students in the two colleges were randomly assigned to experimental group that used the computer-based package or the control group that received regular classroom teaching. The Computer-based instructional package utilized interactive multimedia lessons, simulations, and formative assessments aligned with the curriculum. Two instruments were used for data collection. These were (i) Technical Drawing Achievement Test (TDAT) and (ii) Students Attitude Towards Technical Drawing (SATTD) questionnaire. The (TDAT) test contained 30 multiple choice items and five practical questions. The study lasted eight weeks. Data collected were analyzed using mean, standard deviation and t-test. The Computer-Based Instructional Package (CBIP) for teaching technical drawing was designed using Microsoft Net framework. The results showed that students’ performance in Technical Drawing increased significantly when CBIP was introduced (t = 16.06, p < 0.05). The results also showed that there was significant improvement in the retention ability of students exposed to CBIP (t = 14.69, p < 0.05).  Finally, the results showed that there was a significant improvement in the attitude of the students exposed to CBIP when compared with those taught using the conventional mode of teaching (t = 13.30, p < 0.05). The study concluded that Computer Based Instructional Package (CBIP) was an effective instructional intervention for teaching Technical Drawing in colleges of education.