The document discusses recommendations for improving K-12 STEM teacher training and development in California. It finds that current teacher training is disjointed and does not adequately prepare teachers in math and science content or skills. The key recommendations are to create a coherent, progressive system of teacher training that integrates content, pedagogy and clinical practice; increase the math and science capacity of teacher training programs; and form strong partnerships between teacher preparation programs and school districts. Revising standards and linking credentials to demonstrated competencies are also recommended. The goal is to transform the system to better support great STEM teachers and produce STEM-literate students.