The invention includes a device that saves space by functioning as a stepladder, walker, wheelchair, and Pilates chair. It can be used by elderly caregivers at foster care homes. The stepladder allows the retrieval of medical files or medications…

Interactive Pre-Maths. Preschoolers can learn early Mathematics by using interactive and augmented reality. The activities developed by Ompok (2021) based on National Preschool Standard Curriculum (2017) such as 

• Perception of…