The document discusses improving student achievement through improving teacher quality and effectiveness. It argues that mentoring alone is not sufficient for developing new teachers, and that comprehensive induction programs including initial training, ongoing professional development, administrative support, and other components are needed. Research shows new teachers lower achievement initially but induction programs can reduce teacher turnover rates from over 40% with no training to 18% with comprehensive induction over multiple years. Mentoring should be one part of induction rather than used interchangeably or as a standalone approach.