If you’ve ever seen the data validation option in Google Forms and wondered what it does, you’re not alone. I get asked about it every time I lead a workshop on Google Apps for Education. In a nutshell, data validation allows you to specify a number, range of numbers, text, or series of characters that must appear in a response to a question that you ask in Google Forms. In the video embedded below I provide a demonstration of two ways that you might use data validation in a classroom setting.