How do Instructional Materials Make Lessons More Mentally Stimulating?

Teachers need to put a little thought and study into what kind of instructional material is apt at which level of K12 content. Very young kids would love drawings and posters in eye-catching colours. But older kids and teenagers would find these immature; they want to have presentations like they occasionally see their parents work with at home. Kids 10 years and older love the challenge of solving puzzles while in the classroom where their friends are competitors.

So, what works with one age group might become altogether redundant or ineffective for another. As mentors of kids of different ages and intellectual levels, school teachers and class tutors should be able to pick the most suitable instructional materials for kids of a particular age.