Corwin publishing released a book this year called “The Formative 5”. I’m currently reading it and it is helping to clear up my confusion on what kind of formative assessments to use, when I should use them, and how to maximize my understanding of students with them. I think it might help you out. https://www.amazon.com/Formative-Assessment-Techniques-Classroom-Mathematics/dp/1506337503/ref=nodl_