I used wordly wise 3000 with my older son when I home schooled. It looks like you can get them from Walmart online now. I would go up to whatever reading level your child is and not by age/grade level.
My younger son is going to be in 7th grade next year but if I were to buy one for him I would start with books 11 and 12 with him. (But he tests really high and we are acellerating him to 9th grade English next year). If they were too hard I would buy the next two down.
ETA. It looks like on the wordly wise website you can look at the word lists for each book and decide which book is most appropriate. I was right that I wouldn't get book 7 to my son but much higher. One of his first words I remember him saying other than mom, dad and his brother's name was "actually" so he has always used words beyond his years.
Last edited by Cookie; 06/18/16 01:14 PM.
