  Learning miniaturization science remains challenging due to the non-intuitive
behavior of microscale objects and complex assembly approaches. Traditional
approaches for creating microsystems require expensive equipment, facilities,
and trained staff. To improve as well as democratize microdevice education, we
created a new educational activity that enables students to build and test
advanced microfluidics by leveraging sticker microfluidics, composed of
double-sided dry film adhesive layers. Along with T-mixers and bubble
generators, our activity is the first to enable students to build a valve and
F-mixer in the classroom setting. This helps emphasize less intuitive aspects
of device manufacturing such as the creation of complex 3-dimenstional shapes
with layers and layer alignment. In addition, this paper provides the first
reported quantitative data on significant improvements in student knowledge and
confidence from building and testing several common devices. All 11 students
had substantial improvements in conceptual mastery and confidence after the
activity. Student responses to a guided reflection highlight how the activity
supports a variety of learning needs and preferences. Given the impact on
student learning, our low-cost activity helps reduce global barriers to
miniaturization science education.
