GoFormative.com is a powerful tool with tons of potential in your classroom. If you are familiar with Google Forms, think about that tool on steroids. It gives the teacher the ability to do instant formative feedback to the students, to ensure understanding. Teachers can create a class and have their students enroll without even using an email address. Once enrolled into the class, teachers can then assign their assignments to the students, which they begin working on. While the students are working, the teacher can see the progress in realm time on their own screen. It is a more interactive, immersive experience. Teachers can provide instant feedback and help as the process goes. For the assignment itself, teachers can use multiple choice questions, short answer, and true/false. Teachers can also have the students draw something, either on a blank canvas or a picture that had been uploaded. Teachers can add content to the assignment/assessment such as an image or drawing.
Check out these tutorials to get started with GoFormative.com