Here is a comprehensive recorder tutor ranging from the beginners first notes to advanced playing on the alto recorder. The tutor uses many playful elements to progress in small steps and can be used for both individual and group teaching.
"Seems to be aimed at descant recorder players wanting to play alto. Keeps referring to soprano fingering in comparison to alto. Most of the music is for soprano and alto duet. No good for learning the alto individually. Enjoy the recorder tutor is far simpler and you dont need a descant recorder player to practice with. Waste of money."