The phrase "a lesson in class" is correct and usable in written English.
It can be used to refer to a specific educational session or topic being taught during a class.
Example: "Today's lesson in class focused on the principles of physics and their real-world applications."
Alternatives: "a class session" or "an instructional period".
For nearly 20 years, high school chemistry teacher Jonathan Bergmann would teach a lesson in class, help students after school and give them standard homework assignments.
The National Coalition for Child Protection Reform found a lesson in class in which poor mothers get punishment far harsher than anything Ms. Primoff is likely to face.
The Sneetches paid for a lesson in class prejudice, and Horton came back to hatch the egg and learn about the rewards of acting with honor.
Here in New Zealand's capital, it's exactly that hippy bumper sticker mentality that makes the upcoming election such a lesson in middle class baby boomer guilt.
After watching Professor Claude Crozet, a French officer, teaching geometry with a blackboard at the Academy at West Point in 1817, one viewer wrote: "we know of no mere adjunct of teacher, so useful as the blackboard".13 While books are passive, the blackboard/teacher combination provided a mechanism for the dynamic unfolding of a lesson in whole-class instruction.
Plus, in a moment of what I hope proves to be an inspired choice for Secretary of State, he gave the Clintons a lesson in generosity and class.
"No problem," chirped Theo, adding that, unlike his physician father and attorney mother, he planned to be a "regular person" and "work in a gas station, drive a bus, something like that". Cliff would have none of it, of course, giving Theo a lesson in upper-middle-class economics with Monopoly money and commanding him to do better.
This account is a lesson in the formation of class distinctions, which communism was supposed to erase.
The book begins with a poignant short essay, Why I Would Fail Third Grade Math, in which he observes a lesson in his daughter's class that is typical in many American schools.
Volunteer to teach a lesson in a colleague's class to demonstrate active learning and what students can achieve when given the opportunity.
It may be enough to take a child through his or her first lesson in class but it is not sufficient to deliver a quality education.
