This PDF document (Word document available for editing upon request! ;)) contains 18 weeks of spelling lists and vocabulary lists based on different principles (primarily prefixes and suffixes). East list contains 20 words (5 content-specific that you can change). I used these on a bi-weekly basis last year. The vocabulary lists are more difficult, and we did a greater amount of in-depth activities with these to increase understanding. Could be used as advanced 4th grade words, 5th grade words, or 6th grade words. Each page has 2 lists that can be cut in half and laminated for student use.