This adage applies well to teachers and the use of technology. If a teacher wants to implement a new technology tool in the classroom, he/she must first determine if the students really need it. Basically, if the students are already learning what they need to and are achieving the desired outcome, then there is no need to make a change. However, if there is a need and a particular technology tool can help meet that need with an expected outcome, then it is advantageous to use that tool. Such factors are often charted in a relative advantage chart.
I designed the chart below for the students I volunteer teach: teenagers who are learning English. I teach computer skills and expose them to various technology tools. I write my own goals and objectives, as there is no set curriculum. Hence, I developed these ten learning problems based on my observations of them in class and the expected outcomes if they use these technology tools.