Passthepotatoes makes good recommendations. I teach Latin 2, 3, and AP Latin at a public high school. I bought Minimus for my then 2nd grade DD at a conference and she loved it for the cute factor. It was not very rigorous for her, though.
I teach Latin for Americans which is Boring (note the capital B). Long story about why I teach it - public school, textbook adoptions, yadda yadda.
The Minimus books are part of the Cambridge family of books, which are also good. The books themselves are very small and portable, which I like. Like Ecce and Oxford, Cambridge follows a story arc throughout the book which encourages interest in the learner.
I second the recommendation to look into the NLE. The syllabus is published on their website so the student can prepare well.
Bonam Fortunam!!
