A Staff Development Workshop on “Assessment Literacy & optimizing classroom assessment strategies” was conducted by Dr Yan Zi for the teachers of Aldrich Bat Government Primary School on May 26 2021. In the workshop, Dr Yan introduced the theories and rationale of assessment literacy as well as its significance to different stakeholders in the education sector. Through examples, the speaker explained the similarities and differences of the major assessment methods (such as “assessment of learning”, “assessment for learning” and “assessment as learning). The participating teachers engaged in group activities to explore ways to optimize classroom assessment strategies for enhancing learning and teaching effectiveness.