The 4-MAT Process is a teaching model developed by Dr. Bernice McCarthy in 1980 that takes into consideration individual learning styles and focuses on left and right brain teaching strategies. The purpose is to raise teacher awareness of why some teaching methods work for some learners and not others. The model identifies four types of learners - Innovative, Analytic, Common Sense, and Dynamic - each with different needs for investing in learning. Teaching methods are tailored to each learner type, such as cooperative learning and brainstorming for Innovative learners, lectures and research for Analytic learners, hands-on tasks and manipulatives for Common Sense learners, and independent study and simulations for Dynamic learners