In my experience, smaller schools, where every teacher has to teach multiple subjects, are more likely to integrate subjects - mostly due to necessity rather than any sort of pedagogical reason. Even though I am required to teach science subjects separately to different age groups; as the only science teacher I always try to help my students understand how the different areas of science overlap and interconnect, which makes me a better science teacher and helps them better understand the “big picture”.
I have taught integrated science to middle school students and I believe that it is a better, more effective way to teach science to everyone, especially so for students from cultures who view their world in a more holistic way. Smaller schools or those with teams of teachers also have the advantage of collaborating to integrate across different subjects. Cross-curricular projects are not only a great way to authentically assess learning but also a great way for students to see/demonstrate the interconnectedness of all learning.
