Math Apprentice is designed for students in grades 4-7. According the producers of this site, “the goals of this project are to connect math with real world careers, introduce students to more advanced mathematical ideas, and provide additional opportunities to apply math concepts they have already learned.” If you have a student who asks you, “How will I use this in the real world?”, you will probably want to give him or her this link. The activities will definitely appeal to tweens, and there is a great guide for teachers to facilitate using this in the classroom.