In the context of scholarly and scientific discourse, students often have to deal with graphic-visual modes of communication, which requires their ability to comprehend and utilize inscriptions, that is, scientific visual representations, to convey information effectively--what we call graphical literacy. Despite its pivotal role for training…

Instructional tasks are key features of classroom practice, but little is known about how different components of tasks--such as selecting or designing tasks for a lesson, launching, and implementing them with students--shape the conditions for students' intellectual engagement in science classrooms. Employing a qualitative multiple case study…