You might like to organize some study sessions with friends. You could work:

• as a group answering questions together
• individually while sitting together and then compare your answers.  If your answers don’t agree ask your class mate to explain how they reached their answer. As a group, work out who has used the correct method and has reached the correct answer.
• alone, perhaps in your room, and contact your group by Facebook, Skype, etc to compare answers.

Set some ground rules:

• stay focused on the topic
• agreed the amount of time to spend on any task
• everyone in the group must contribute