Interactive whiteboard (IWB), also known as the digital board, interactive board, or smartboard. It is used during virtual teaching especially for teaching mathematics and science subject. It can either be a standalone touchscreen computer used independently to perform tasks and operations, or a connectable apparatus used as a touchpad to control computers from a projector. Most of the interactive whiteboards have a lot of smart tools such as laser pointer, eraser, pen, text, insert multimedia content, etc.