Here is a link to a great reading resource that is available online thanks to Google Books. I studied this book when I was in year 12 in Egypt and it taught me a lot. This is not all the book but just a few lessons that you can use.
http://books.google.com.au/books?id=2t-WehHyY10C&pg=PA18&dq=practice+and+progress&source=gbs_selected_pages&cad=3#v=onepage&q=practice%20and%20progress&f=true
