Undergraduate course. This is the second of a series of two related courses on curriculum and teaching methods in mathematics, with a focus on Hong Kong school context. The use of instructional technologies (such as dynamic geometry software, 3d printing, and coding) for designing mathematics and/or STEM learning tasks and projects will be some of the major focuses of this course. The discussion will extend from activities inside mathematics classroom to extra-curricular and cross-disciplinary mathematics learning activities, including STEM learning activities (Fall 2019-Present).