Here are some revision activities which do not require the internet.
Reflect on what you did in lessons - Go through your book making sure all work is complete. Have this with you and make extra notes in it when revising using other methods. Use post it notes to write down the 2 or 3 key points from every lesson and stick them on the pages.
Buy a revision guide and workbook (ask your teacher which one is correct for your course) - work through your guide reading and highlighting information and answering the questions at the end of each topic. Then complete exercises in the workbook from memory, then check and mark your answers.
Quiz cards to use alone - Cut out some small cards (about 10cm x 5cm). Write a question on the front of your card and the answer on the back. This may also be done with keywords and definition or using diagrams and labels. You can revise with these alone, trying to answer then checking with the answer on the back. You can print off quiz cards from quizlet.com/.
Quiz cards to use with someone else - Do the same as above however put the question and answer on the same side so people can quiz you.
Make a mind map of a unit or topics, condensing your notes onto one page and exploring the links between what you have learned.
Listen to your notes - Record yourself reading out your notes on your phone and listen back to it when you are walking around or in the car.
Wordsearch - Make a wordsearch with clues and the answers are hidden in the wordsearch (very good for key words). You might make one for a particular topic and swap with your friends. You can find a template to use by following this link. http://misshaleenglish.weebly.com/starters.html
Create your own unique website with customizable templates.