The information collected in the Privacy Notice does not differentiate between adults and children. You can also view the source code to java programs on this site. We encourage your interest in helping your students with activities on this site. Some of the puzzles may be more difficult than ones the student has attempted before. Each puzzle will have some notes to assist you and you can find them by clicking on the Mentor's Button.
Puzzles come in three levels.
Elementary level is appropriate in content and difficulty for elementary school students in grades three through five. Intermediate level puzzles are geared for middle school students. Master puzzles are the most difficult and are designed to be challenging for high school, college students, and adults as well.