E-learning 3 Students 3 primary school 3 Child 2 Computer aided instruction 2 Humans 2 Primary schools 2 article 2 child 2 human 2 ATTENTION 1 Application programs 1 Assistive Courseware (AC) 1 Assistive Technology (AT) 1 Audiologists 1 Augmented reality 1 Aural rehabilitation 1 COVID-19 1 Calculations 1 Communication options 1 Computer-Assisted Instruction 1 Content-based recommendation 1 Cosine similarity 1 Counseling 1 Data fusion 1 Data handling 1 Dental Plaque 1 Dental Plaque Index 1 Digital game-based learning 1 Digital information processing 1