Self-study activity:
Whenever you read a text or whenever you finish studying a lesson, make it a habit to draw up a list of vocabulary you want to learn or revise. Go to 'Start Here' on the Vocabulary and Spelling City home page and type in some of your words. Then, click on 'Spelling Test' or 'Vocabulary Test' or 'Teach me' or 'Play a Game', and let Vocabulary and Spelling City do the rest for you.
H/T to Larry Ferlazzo.