The publication
Lessons
Explainers on the checks behind a grade, plus the Black Friday sheet. The method is the one we grade with.
Guide
Black Friday 2026
Oct 21, 2026
The DealTeacher Black Friday 2026 deals hub. Grades go live starting November 27, with a verdict and a lesson on every row.
Explainer
Why we publish the deals we skip
Oct 21, 2026
An F is a lesson. DealTeacher keeps the bad deals on the site, with the reason, instead of quietly dropping them.
Explainer
A percent-off tag is not a grade
Oct 11, 2026
Forty percent off can be an A or an F. The grade comes from the price history, not the size of the sticker.
Explainer
How to spot a fake discount
Oct 8, 2026
A was-price is a claim. Check it against the chart, the other stores, and the seller before you trust the percent.