52 BrainBoosting Activities for Groups Author:Rick Germann, MA, LCPC Challenge teens with these fun and engaging mental workout activities. The book addresses cognitive skills with goals to improve memory, decision-making, problem solving, concentration, thinking skills, and creativity. Each activity is reproducible with ste-by-step instructions for leading the activity. Activities are rated easy, moderate or dif... more »ficult. The cards are sure to prompt thinking, creativity and fun, and can be used with the book or by themselves. Grades 7-12.« less