Students need to be able to reason and prove in order to be successful when solving problems. However, if your students are anything like mine, all too often they get an answer and move on, without taking the time to check to see if their answer even makes sense, much less if it is accurate!
This product is made up of two slips for students to complete. The first is completed before students begin answering the question and requires them to make conjecture using reasoning skills. The second is to complete after answering the question and forces students to check back and decide if their answer is reasonable.