by Jennifer Baker Powers Classroom teachers at all levels, both in Montessori schools and in the public sector, are observing a noticeable decline in some students’ core strength. Core strength encompasses the muscles that engage the stomach, back, gluteus and pectorals. These muscles work together to provide an optimal posture for learning. Children with a weak core often demonstrate an inability to sit cross legged on the floor without bracing their knees for support rather propping on one arm/hand for assistance or leaning forward for [...]