Words should be printed, not written in cursive. Implement short, highly motivating lessons daily no more than 10-15 minutes in length every day totalling no more than one hour per week. Test and immediately have students self-correct. Students should correct their own spelling tests. This procedure has been found to be the single most worthwhile learning activity yet to be devised.
Research indicates that it is clearly appropriate for all ages and abilities.
Loomer and Strege. Useful Spelling - A Research Based Program.