Enrich and extend your math lessons with these ‘Math Mystery’ logic puzzles that are the perfect challenge for 4th, 5th, and 6th grades. The puzzles are skills-based, so they integrate well with almost ANY math lesson! Three levels of difficulty make for the perfect challenge:Introductory logic puzzles are great for beginners (4th grade and up!)Advanced logic puzzles are great for students needing an extra challengeExtra Advanced logic puzzles are perfect for expert solvers… we dare you to fi