Cal. Educ. Code § 44277
(d)
(1) If a local educational agency offers a program of professional growth for teachers, administrators, paraprofessional educators, or other classified employees involved in the direct instruction of pupils, the local educational agency shall evaluate professional learning based on all of the following criteria, and the local educational agency is encouraged to choose professional learning that meets any of the following criteria:
(2) Professional learning activities may also include collaboration time for teachers to develop new instructional lessons, to select or develop common formative assessments, to analyze pupil data, for mentoring projects for new teachers, or for extra support for teachers to improve practice. Appropriate professional learning may be part of a coherent plan that combines school activities within the school, including, but not necessarily limited to, lesson study or coteaching, and external learning opportunities that meet all of the following criteria: