This review is great as a bellringer! I have used it daily with my 5th and 6th grade students and have been amazed at the retention of facts. I use basic algebraic equations,measurement, basic facts, properties, etc. When you buy it, adapt it for yourself. I generally change the numbers every week to keep them on their toes! This ppt is timed so it only lasts 3 minutes. Each slide is shown for 7 seconds. This is a bundle containing 4 different versions of my 3 Minute Math. This is a compressed folder (zip file) containing 4 PowerPoint presentations.