Google forms is a simple to create, simple to use data collection tool. Use it as a way to check in with your students on just about any subject, create guided assignments that offer feedback as students work through them, they are great as self grading assessments, and allow you to offer feedback and additional resources and materials within the form. As part of G Suite for education, they integrate seamlessly with Google Classroom allowing you to import grades from the form into your Google Classroom. Additionally, you can link a Google Sheet to collect responses, giving you the power of sheets to organize and review your data.