Google Forms is one of the most useful educational technologies that a teacher can learn. It comes free with your Google Mail account and can be used for a huge range of things. You can use it to collect any type of data from students/teachers or whoever you are working with. You can create surveys and questionnaires with different types of questions. You can also include pictures and video. There are a whole range of question types making it a great tech tool for teachers that can be used in a whole range of different ways.