On 4 November 2026 Google announced the rollout of Guided Learning attachments for Classroom assignments. Here is a short exercise for a teacher or learner to use with the available guided chat: a rate moves from 20% to 30%. Ask for a hint about the denominator before asking for a calculation.
A rate rises from 20% to 30%, and an AI report calls that “an increase of 10%”. The two values differ by ten percentage points. Relative to the starting rate, the increase is 50%. Those are different statements about the same change.
Keep both calculations visible
Ask for the original rate, new rate and formula. The point change is 30 minus 20. The relative change is (30 minus 20) divided by 20. If a spreadsheet stores percentages as 0.20 and 0.30, keep that representation consistent and format the relative result as a percentage.
A starting rate of zero needs special handling: ordinary relative percentage change divides by zero. Do not let the assistant invent a finite growth percentage merely to fill a report field.
Match the sentence to the calculation
Use “ten percentage points” when describing the difference between the rates and “50% relative increase” when describing growth from the old rate. Check the underlying counts too if they came from different groups. This is an arithmetic review, not an estimate of a real business outcome or a claim that a model calculated it correctly without checking.
The Classroom integration began rolling out on 3 November for Education Fundamentals, Standard and Plus, in Gemini-supported languages. Teacher and student access depend on the school administrator enabling Gemini. In an assigned activity, the teacher can review the conversation, so keep the example fictional.