Do You Love a Classroom DIY That Saves You Money?

I teach a self-contained LLD (Learning and Language Disabilities) class, where all of our instruction is done in rotations. I have just 20 minutes with each group to introduce new material. This structure works well because my students generally have short attention spans, but it also means I feel a lot of pressure to make the most of those 20 minutes! One thing that really frustrates me is when a student...