The cover boasts that 15 minutes a day and this book are all you need to teach ages 8 to adult comprehensive spelling skills. I had four poor spellers and tried probably five or six different spelling programs. Most only worked on short term memory spelling. Some left both student and teacher frustrated at the end of the week when spelling tests revealed a failing score. Spelling Power took much of that frustration away. After placement testing, Spelling Power walks the student and the teacher through a series of definitive and effective steps for learning how to spell. Mastery, rather than short-term memorization is reinforced.
 
Unlike most other programs, Spelling Power starts by concentrating on teaching words which will give the greatest increase in spelling abilitythe one thousand words which comprise approximately 89% of our writing and are used the most frequently. Each level of the program reviews words from previous 
levels, again doing everything possible to promote mastery. Spelling Power is also great for exceptional spellers since students are placed on a level according to ability and can progress accordingly. After all the levels are completed, the teacher will know that the student is proficient with approximately 89% of  the most commonly used words. Students can then devote more time to other studies, prepare for spelling bees, or learn words specific to their field of study.