I use this contract with students that have failed a nine weeks and/or semester. The greatest value is the conversation it facilitates with the student. It contains a list of things they need to do to get on track. I have uploaded it as a Word document, so you can customize this list if needed. It also has a slot where you can calculate a goal grade with the student so they know what they need to earn in order to be passing again. Students and parents sign the form. It can also be used in student-parent conferences of failing students.
The assignment is a word document and can be edited as needed.