Abstract
Simple machines - we all know them: pulley, lever, wheel shaft, inclined plane, wedge and screw. They help us to facilitate the work.
Similarly, computers and various materials from the Internet can facilitate teacher's work.
Simple machines - we all know them: pulley, lever, wheel shaft, inclined plane, wedge and screw. They help us to facilitate the work.
Similarly, computers and various materials from the Internet can facilitate teacher's work.