It is a must for Thai citizens in this digital era to be able to absorb internationalization skills to survive in the connected world. The study entitled The development of a 3D application for teaching English with integrated digital technology and practical training aims to develop a 3D application for integrated English teaching with digital technology and practical training. Academic literature about 3D application systems the achievability of problems and instructional system design frameworks were reviewed. Additionally in- depth interviews were conducted with 10 key informants using a snowballing technique. The informants were English-teaching experts teachers and social science students. The main findings from the in- depth interviews revealed that most participants did not use HMD VR to learn and practice English language skills while traditional styled teaching was used more often. There had not been much technology-integrated learning compared to language- related games and applications were used. Moreover VR was not applied much to English learning. Accordingly with the devices of Unity Oculus Blender and C# language the development of 3D applications for teaching English with practical training has been developed as an appropriate and optional tool for Thai students with an educational opportunity in English communicative skill practice in the virtual world and accessibility to the useful technology.

Purposes of the research were to design and develop Computer Instruction Package on Principle of Object-Oriented Programming and to find out efficiencies effectiveness and leamers satisfaction towards the package. The research tools were: 1) The Computer Instruction Package on Principle of Object-Orientes programming 2) Achievement tests 3) Quality assessment and evaluation form for multimedia software and 4) questionnaire of leamers satisfaction. sampling groups composed of 30 Bachelor first year students from Faculty of Business Administration Program Computer Infomation-Business Computer Rajamangala University of Technology Phra Nakhon. Research results revealed that the efticiency of the Computer Instruction Package was at 81.08/81.05 corresponding with 80/80 criteria. Analysis of pre-test and post-test scores found that the effectiveness aftce the process (E) was at 81.08 it was higher than before the proecss (E) which was at 18.25. Therefore the Computer Instruction Package on Program Design and Development could increase the students learning effectiveness up to 62.83 corresponding with 60 criteria. Mean of satisfaction of the sampling groups was rathe at a high level (4.31). It could be concluded that the Computer Instruction Package on Principle of Object-Oriented Programming had the efficiency that could used for self study.