This document discusses assessment and evaluation in science education. It defines assessment as collecting information on teaching effectiveness and student learning, while evaluation involves forming judgments based on assessment data. Several purposes of assessment are described, including appraising student achievement, identifying strengths and weaknesses, and determining teaching strategy effectiveness. The document then outlines various techniques for assessment, such as pencil-and-paper tests, analyzing work products, oral assessments, observation, performance-based tasks, interviews, and portfolios. Student performance is presented as an indicator of teacher performance, and questions are provided to evaluate teacher effectiveness.