การนั่งสมาธิก่อนเรียนหนังสือช่วยเเก้ปัญหาพฤติกรรมเด็กนักเรียน
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Parents and teachers around the world deal with unruly children every day. While some send kids to a quiet room, others resort to corporal punishment. Most states in the U.S. ban corporal punishment in schools. Now, a school in Baltimore, Sarah Zaman reports