I have a student who continually rushes through his work as well. I now have an agreement with him that work is not turned in before a 30 minute window has passed, and this must be spent engaged in reading and completing the work. If he turns it in at 30 minutes, I score it. If he has less than an 75, I give him a blank copy and he must start again. We have had multiple conversations regarding this, and he knows that if he wants to rush and fail, that means he must do it again. I average the two scores together as well, and he has learned that this means a lower grade will bring his score down. He seems to work harder on the second one. I am hoping he learns to do it right the first time!

I have several students that rush through assignments as well. I often find that these students, when they don't understand how the information applies to them individually, don't care what they score on the assignments. I have pulled these students aside individually and explained or had them explain to me how the information is relevant in their own life. Once they grasp an understanding of this, they tend to put forth the effort needed to complete the assignment. This may not work for every student, but it has worked for some.

In order to get this student to take his time you are going to have to provide positive reinforcements. It will be helpful to set something in place to reward this student for performing well on assignments. It does not have to be something extraordinary but a small piece of candy can work wonders.

I think in order to get this student to take his time you can use a reward system. Depending on the assignment and the average time it would take to do it than you can have the student do his work slower. Say you have a reading assignment for the student. Have a set of questions ready for the first chapter. Say it usually takes an hour to read the chapter. If he takes his time to read through the chapter he has to come up to you and answer three specific questions that he could only know if he truly read the book. He cannot have the book when you give him the questions and you observe him to make sure he does not cheat. If he gets the questions right he gets a reward. You decide on the reward obviously.