Assessment of the Skills Possessed By the Teachers of Metalwork in the Use of Computer Numerically Controlled Machine Tools in Technical Colleges in Oyo State

The purpose of this study was to assess the skills possessed by the teachers of metalwork in the use of computer  numerically controlled machine tools in technical colleges in Oyo State. Three research questions and three null hypotheses tested at 0.05 level of significance guided the study. A survey research design was adopted for the study. The population for the study comprised of all the 35 metalwork teachers in the technical colleges in Oyo State. A structured questionnaire consisting of 41 items was used for data collection. Two experts from the Department of Vocational Teacher Education, University of Nigeria, Nsukka, and one expert from the Advanced Manufacturing Unit, Scientific Equipment Development Institute, Akuke, Enugu, face validated the instrument. The reliability co-efficience of the instrument was 0.86. Data collected were analyzed using mean and standard deviation for the research questions while t-test was used for testing the null hypotheses. It was found from the study that six skills were not possessed by metalwork teachers in the use of computer numerically controlled lathe and grinding machine, while seven skills were not possessed in using computer numerically controlled milling machine.  It was recommended that regular and systematic retraining should be organized for metalwork teachers who lack required skills in using these machines. Keywords: Assessment, Technical College, Metalwork, Computer Numerically Controlled Machines, Skill

Investigating the Effect of Mobile Apps on Student's Motivation and Achievement in Motor Vehicle Mechanic Work

Purpose: The study was carried out to investigate the effect of mobile apps on students' achievement in petrol engine maintenance work in technical colleges in Enugu State, Nigeria. Approach/Methodology/Design: The study adopted quasi-experimental design and was carried out in Enugu State, Nigeria. The population for the study was 170 NTC II students. The sample size for the study was 40 motor vehicle mechanics work NTC II students who have any mobile technologies (Smart phones) participated in the experimental group and were selected using purposive sampling technique. The instrument for data collection was motor vehicle mechanic work achievement test (MWMWAT). The data collected were analyzed using mean, to answer the research questions while ANCOVA was used to test the hypothesis. Three research questions were answered, while one null hypothesis formulated were tested at 0.05 level of significance. Findings: The study revealed that students taught petrol vehicle maintenance works with mobile apps had a higher mean achievement score than those students taught using conventional teaching aids in the achievement test. There was a significant difference between the mean achievement scores of students taught with mobile apps and those taught with conventional teaching aids in motor vehicle mechanics work trade. Practical Implications: The study will contribute positively to the understanding of using mobile apps to increase students' motivation and academic achievement. Originality/value: This study innovates in examining the use of mobile apps by motor vehicle mechanic work teachers in improving the motivation and academic achievement of students