You will want this Teachers Manual. While you can get away without having one for Level 1. Level 2 is twice and thick and twice as challenging. Level 2 goes beyond Level 1 with adding the endings and tenses. But also does a nice job of reviewing Level 1 as you go along. I highly recommend! I have no idea how my children would remember all of the vocabulary words without this CD of songs. This program makes sense! I believe Level 2 would be appropriate for grades 2-6, after they have completed Level 1.