Use assessment to inform instruction and learning in the science classroom! Science education expert Page Keeley shares 75 specific techniques that help K-12 science teachers determine students' understanding of key concepts and design learning opportunities that will deepen students' mastery of content and standards. These flexible assessments can be used with any science curriculum, and the author describes: How each technique promotes student learning Considerations for design and implementation, such as required materials, timing, modeling the technique, and grouping students.