Good writing skills are vital to success in school and, later, in the workplace. However, many elementary and secondary students fail to invest sufficient time and effort in planning what they want to write and, consequently, produce texts of inferior quality. One approach to help struggling children and adolescents acquire effective writing…

We applied cognitive load theory in an heuristic out-of-school science lesson. The lesson comprises experiments concerning major attributes of NaCl and was designed for 5th to 8th grade students. Our interest focused on whether cognitive load theory provides sufficient guidelines for instructional design in the field of heuristic science…