'The Digital Divide: How Technology Affects Education': A peer-reviewed journal article
Credible
'School Funding Cuts and Their Impact on Education': A BBC News article
Credible
'Challenges in Modern Education': A Wikipedia entry
Not appropriate: user-edited and unreliable.
'The Impact of Social Media on Student Engagement': An opinion piece in an online magazine
Not appropriate: someone's personal opinion and not based on research or facts
'Teacher Training in the 21st Century': A published book
Credible
'Why Extracurricular Activities Matter': A personal blog post sharing anecdotal experiences
Not appropriate: no evidence-based research and not academic
'Education Policy in the 21st Century': A government report by the Department of Education
Credible
'Education Reform is a Scam!': A social media post from an anonymous user
Not appropriate: an unverified opinion from an unknown source.