Table 1.

The coding of collected data.

Raw codes	Main themes synthesized from raw codes	Clusters of themes
1. Before teaching
+ Learning preparation of teacher - Textbooks, internet - Assignments and necessary materials - Digital devices	Teaching preparation	Teacher - Technologies - Learning contents - Infrastructure
+ Learning preparation of students - Their minds, learning spirit - Smart phones, Internet - Various learning materials	Learning preparation	Learners - Learning attitudes, Skills, Knowledge - Digital devices - Learning contents
+ Stakeholders - Administrator and staff of KKU - Computer teacher		Administrator/Staff Interaction - Technologies - Infrastructure - Supporting
+ Evaluate the student’s level - Ask and answer of vocabularies - Pre-learning test - Playing games	Evaluating students' learning	Teacher - Students' evaluation Learners - Skills - Knowledge
+ The most importance for teacher and students - Readiness of teachers and students - Create learning atmosphere - Teaching materials, equipment and devices - Internet	Most important things in teaching process	Teacher and learners - Digital devices - Learning atmosphere - Technologies
2. During teaching time
+ Learning and teaching methods and activities - Questioning and answering - Use Problem-Centered Learning - Students' and teachers' presentation + Learning content - Books, manual books, textbooks, worksheet, cut-ups, CDs, Power points, PDF, videos, student's textbooks - Use the video/media from Youtube + Technologies and equipment - Google Classroom - Media, platforms, and technologies provided by KKUSL - QR Code - Google Form, and Google Sheet	Teaching and learning activities - Methods - Contents - Technologies	Teacher - Teaching methods - Technologies - Teaching contents - Infrastructure Learners - Digital devices - Learning styles - Learning attitudes
+ Developing learners' knowledge, skills and attitudes - Encourage them to talk, argue and use it in daily life - Organize student-centered teaching activities + Promoting learning - Giving opportunities to communicate, get more information - Use games to enhance their knowledge	Developing and promoting students' competence	Teacher - Teaching methods - Technologies Learners - Learning attitudes - Skills - Knowledge
+ Evaluate students - Students' feedback, - A post-test - Examination or do assignment/homework	Evaluating students' learning	Teacher - Students' evaluation Learners - Knowledge and skills
+ Most importance during teaching time - Learning atmosphere - Readiness of the students and teachers - Interests of students	Most important things in teaching process	Teacher and learners - Learning atmosphere - Technologies - Learning attitudes
3. End of class
+ Assign homework/work assignments/test - Taking videos and upload in Google Classroom - Limited homework or no homework + Manage self-learning - Google classroom - Line group	Teaching and learning activities	Teacher - Technologies - Learning management Learners - Digital devices - Contacting
+ The most important things after class - What knowledge/content students got - Happiness in learning - Improve knowledge and skills	Most important things in teaching process	Learners - Learning outcomes - Learning attitudes