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500
abacus
it is a useful learning device designed to calculate. This device consists of two rows of beads in a variable number of columns. this also established easier and faster ways to learn. One disadvantage is that it is hard to carry around and takes a long time to calculate. -
internet
internet helped many to access information from around the world easily, it enhances knowledge and skills from all over the world. -
radio
Radio has had the power to bring the world to the classroom, it also helped programs to be presented as textbooks of the air. -
social networks ( twitter, facebook etc)
social networks allow educators to spread their knowledge worldwide and make it widespread all around the world. it allows different languages and types of people to share their views of education and communicate their skills and knowledge with eachother.
