This document is a portfolio by Sarah Mae B. Arangusti summarizing topics covered in her Educational Technology 2 course. It discusses how educational technology can enhance teaching and learning by utilizing tools like the internet, interactive whiteboards, and mobile devices. It also examines concepts like blended learning, podcasting, and virtual field trips. The portfolio explores how computers can serve as tutors and tools for information, communication, construction of knowledge, and student-centered learning through cooperative projects.