TESL Journal
Activities for Esl Students: English Grammar Quizzes Using Java Script
Provides a bunch of interactive grammar quizzes for ESL students on a variety of subjects. They are organized by difficulty level: easy, easy to medium, medium, medium to difficult, and difficult.
Khan Academy
Khan Academy: Review Java Script
A review of JavaScript that includes a self-assessment.
Khan Academy
Khan Academy: Java Script Recap
Make sure you remember enough JavaScript before you keep going.