This paper argues that Internet-based instruction should not be only perceived as a cognitive tool or a metacognitive tool; rather, it can be perceived and used as an epistemological tool. When the Internet is used as an epistemological tool for instruction, learners are encouraged to evaluate the merits of information and knowledge acquired from Internet-based environments, and to explore the ...

In the development of a historical analysis on natural phenomenon electromagnetism, recurrently question appears subject: why does it take researchers about 2300 years to decipher, understand and then dominate apply electromagnetic for benefit human being? To answer this question, hypothesis Bacon's “idols” Bachelard's epistemological obstacle are presented. Both posed very correctly theory kno...