"Some see social constructivist perspectives as putting the teacher back in the picture, in contrast to the personal constructivist position, which many felt was writing the teacher out of the learning process. A social constructivist view focuses on the teacher interacting with their class, whereas a purely personal constructivist view focuses on what is happening in individual students' minds. A personal constructivist view suggested personalised learning programs based on probing students' prior conceptions—a very difficult project for a teacher."
The Art of Teaching Primary Science
By: Vaille Dawson; Grady Venville