The adoption of engineering design-based science teaching requires elementary teachers to modify their current science pedagogy, often resulting in tensions or hard choices they must make in their teaching practice. The purpose of this study is to identify, compare, and characterize the tensions faced by 45 grade 3 and grade 4 elementary teachers…

Acoustical engineers use their knowledge of sound to design quiet environments (e.g., classrooms and libraries) as well as to design environments that are supposed to be loud (e.g., concert halls and football stadiums). They also design sound barriers, such as the walls along busy roadways that decrease the traffic noise heard by people in…

This paper presents a case study examining 3rd, 4th and 5th graders' design fixation and cooperative learning in an engineering design project. A mixed methods instrument, the Cooperative Learning Observation Protocol (CLOP), was adapted to record frequency and class observation on cooperative learning engagement through detailed field notes.…