A Staff Development Workshop on “Assessment Literacy & Optimizing Classroom Assessment Strategies” conducted by Dr Yan Zi for the teachers of Taoist Ching Chung Primary School (Wu King Estate) was held on 23 August 2021. In the workshop, Dr Yan introduced the classroom-level requirements of assessment reform and the significance of assessment literacy to different stakeholders in the education sector. The similarities and differences of important assessment strategies (such as “assessment of learning”, “assessment for learning”, & “assessment as learning”) were explained and illustrated with examples, emphasizing the meaningful impact of involving students in assessment. Through group activities, the participating teachers with the guidance from the speaker explored possible ways to optimize classroom assessment strategies to promote learning and teaching.