Original sentence: Technical scaffolding is a newer approach in which computers replace the teachers as the experts or guides, and students can be be guided with web links, online tutorials, or help pages (Yelland and Masters, 2005)
Edited sentence: Technical scaffolding is a newer approach in which computers replace the teachers as the experts or guides, and students can be guided with web links, online tutorials, or help pages (Yelland and Masters, 2005)