Download this ZIP file and extract_all onto your hard drive. We will be taking advantage of one or two online sources over the course of the semester. This week, we will be working a tutorial on PHLearn.com. Initially it looks like they may be letting people try their site for a few days for free. But our use of the site will push past the 1 week span, so students may ultimately need to create an account and sign up for a 1 month Pro membership for a cost of $12.99. To avoid an ongoing monthly fee, be sure to cancel the account after we wrap up our tutorials and you are prompted to do so.