Confession: I used to think critical thinking meant being skeptical of everything. Question every headline, every claim, every source. Look beyond the face value. But critical thinking is structured evaluation, and knowing when to accept a good argument is as much a part of it as knowing when to reject a bad one. The people I know who are actually good at this are calmer, not louder. That’s what makes picking a course tricky. Two courses called “critical thinking” can teach almost nothing in c

The best courses to learn geology, whether for personal interest or if you are considering a career in the resources field.

Ryan Panchadsaram, course instructor. I recently took OKR Certification: Leadership and Goal Setting by Measure What Matters on Coursera. This course was added to the Class Central catalog in September 2022. Why I Chose this Course At Class Central, we recently started setting quarterly OKRs to boost the company’s performance. I previously worked in the banking industry and was familiar with Key Performance Indicators (KPIs), but had never heard of OKRs. I decided to find out more by taking thi

This year, Duolingo announced a major strategic shift: from monetization to user growth, with a target of 100 million daily active users by the end of 2028. To get there, it needs to grow about 25% year over year, every quarter. In Q2 2026, daily users grew 23%, to 58.7 million, the first time growth has sped up in two years. Duolingo also disclosed a roughly $10 million bonus that pays out if Q4 growth hits 25% or more. Paid subscribers grew by about 200,000 in the quarter, the fewest since 2