/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: davidkalivas https://cdn.slidesharecdn.com/profile-photo-davidkalivas-48x48.jpg?cb=1523423281 Teaching and learning must go hand in hand if we're to be aware to the world around us and especially if we intend to teach others about our world.