The ClassLens Blog
Practical strategies for grading smarter, not harder. Written by a teacher with 22 years in the classroom.
200+ experiments. 8 datasets. No demographic bias. We tested ClassLens against academic benchmarks and published everything, including what didn't work.
Most teachers tried ChatGPT for grading once, got something generic, and quit. The model wasn't what failed. Everything wrapped around it was.
A criterion-by-criterion guide to marking IB English A Paper 1 for May 2026, written for teachers who want to know exactly what changed and what didn't.
A criterion-by-criterion guide to marking IB English A Paper 2 under the new 2026 assessment criteria, written for teachers recalibrating before May.
A teacher's guide to using AI to grade responsibly. Two pillars: student privacy and human connection. Plus the assignments you should never hand to a machine.
Knowledge Gap Reports show teachers where their whole class is struggling after every assignment. How AI grading creates instructional intelligence.
AI has the answers now. My washing machine says AI on it. So what do teachers teach? A 22-year veteran on why questions are the new curriculum.
Research shows teachers spend 9.9 hours per week grading. A 22-year classroom veteran shares the strategies and tools that cut his grading time by 80%.
A veteran teacher compares AI grading and manual grading on accuracy, feedback quality, and time. Where AI helps, and where it falls short.
Everything Google Classroom teachers need to know about automated grading: built-in features, AI tools, rubric grading, and 2026 workflows.