Mathematics and Science Teaching Institute for Beginning Teachers Guiding Principles The National Council of Teachers of Mathematics Principles and Standards for School Mathematics, and the National Science Education Standards provide a vision for effective K-12 mathematics and science education. To realize this vision for mathematics and science education, teachers need a wide range of knowledge, skills, and dispositions, which are derived from research, reflection on practice, and shared expertise. In addition, teachers who are relatively new to the profession need additional support and resources (e.g., networks of others in similar positions, mentors, professional development, curriculum materials). The Mathematics and Science Teaching Institute for Beginning Teachers is based on the research on best practice in professional development and will support beginning teachers as they work to improve the teaching and learning of mathematics and science.