 Mary STEM aims to help teachers flip STEM classes, to cut to the chase in the lesson, to get to those powerful teaching moments quicker and more often. The first step to making flipped classrooms work in your school is to prepare your students for flipped learning. At the start of each term, spend a bit of time explicitly teaching your students how you want them to engage with learning at home. This might mean modelling how to watch a video, spending a lesson trying out various note-taking styles, or even talking about metacognition, how thinking about how we think about a new topic helps us learn. Actively engaging students in classroom activities is another important step. You might, for example, ask students to come to class with a question from the homework, or to contribute to a class discussion forum. Some Mary STEM teachers start the class with a pop quiz using a question straight from the homework. The next step is to motivate your students with a diverse range of educational activities. Since flipping helps to free up lesson time, it gives you the chance to offer students more options more often. These could include practice worksheets, labs, or if students are feeling confident, tackling bigger open-ended problems together. Finally, carefully integrating home study and in-class activities can help students to recognise the value in coming to class prepared, and also help you to monitor your students' progress. For example, completing a formative quiz at the start of class could serve as a ticket for engaging in a practical experiment, as well as give you real-time feedback on each student's level of understanding. To join our community, please visit the Mary STEM website. And for more tips and teacher resources, or to share how flipping has worked for your students, find us on Twitter and Facebook.