This document discusses shifting assessments to higher levels of depth of knowledge (DOK). It explains that past assessments like CST only measured lower DOK levels like recall and basic skills. The new SBAC assessment will measure higher DOK levels like strategic thinking, rationalization, and real-world application to better align with 21st century skills. An example is provided for each DOK level, with level 1 being recall, level 2 being skills/concepts, and levels 3 and 4 requiring strategic and extended reasoning using evidence. Classrooms should develop lessons to build skills at all DOK levels.