Schools get funded for time, not outcomes.
Schools get paid for the seat. California funds on average daily attendance and required instructional minutes. Ontario, for example, mandates 110 hours per credit. About 20 of those hours are learning.
Why tutoring never scaled
In 1984 Bloom put a tutor with one student. Those kids scored two standard deviations above the classroom, the 98th percentile. You cannot hire that tutor 30 times in one classroom, and the school still gets paid for the seat. Ontario, for example, schedules that seat at 110 hours. Gilbert writes while he talks. One student.
Bloom, B. S. (1984). The 2 Sigma Problem. Educational Researcher, 13(6), 4–16.
Bloom's 2 Sigma Problem
Teacher hours vs students reached
The learning science
One-on-one tutoring
Gilbert writes on a shared board. He speaks a sentence, then waits for you. Bloom's tutoring group beat 98% of the classroom.
Bloom, B. S. (1984). The 2 Sigma Problem.
Productive struggle
Gilbert never explains first. Every new idea opens with a question you can already attempt. Making a lesson feel effortless produces forgetting.
Bjork, R. A. (1994). Kapur, M. (2008).
Conceptual change
People do not drop a wrong idea because someone explains the right one. They drop it after committing to an answer and watching it fail, which is why Gilbert asks before he explains.
Posner et al. (1982). Muller, D. A. (2008).
Proof you can use it
Every turn ends in one real question. You write it, fill a table, order steps, match, or plot. A skill is checked off when you use it in your own reasoning, not when the term ends.
Roediger & Karpicke (2006). Bloom, B. S. (1968). Kulik et al. (1990).
Immediate, specific feedback
Gilbert answers the words you used. If you are right, he shows the interesting consequence. If you are wrong, he names the one part to rethink.
Hattie & Timperley (2007). d = 0.73
Spaced review
Checking a skill off puts it on a review schedule, including the ideas underneath it. Due items come back weeks later, once you are close to forgetting them.
Ebbinghaus (1885). Cepeda et al. (2006).
The structure of Units lesson.
Wrong on purpose
A question most people get wrong. You answer before anything is explained, then find out why the obvious answer fails.
Picture
One diagram or scene that makes the idea visible, and what to notice.
Lesson
The short explanation, built on what you guessed and what the picture showed.
Check
One question that requires using the idea. Write it, fill a table, order, match, or plot.
Next
He names what you showed, checks the skill off, and opens the next idea.
Find the gap
Open with a question from everyday knowledge. Teach only the missing piece.
Fix it
Hit the specific wrong idea. If the first picture failed, change it.
Try it somewhere new
Same idea, new numbers, new scene. A fresh page on the whiteboard.
Push harder
Raise the complexity or connect to the next objective.
A map of skills you've learned.
One idea at a time
Each idea sits on a map of what it needs first. Gilbert teaches one step per turn and only climbs when your answer shows the step below.
He quotes you
Gilbert checks a skill off by quoting what you said. If you have not used the skill out loud, he records nothing.
The plan comes from your work
He slows after a struggle. He speeds up after you use the idea in a new situation. He draws a new picture when the last one failed.
He remembers
After each turn, Gilbert records at most one skill note and one preference, in your words. The next lesson starts from that.
Elo
One number for how hard a question you can handle, named after the chess rating. An answer you were expected to get right barely nudges it. A hard one moves it a lot, so easy questions cannot pad it.
Why we don't gamify
Points and streaks measure that you showed up. A rating measures what you can do. You cannot fake the rating by answering easy questions, and it is the number that picks what Gilbert asks next.
Elo
The number tracks the hardest question you can get right, the way a chess rating tracks the strongest opponent you can beat. Questions you already know barely move it. You cannot raise it by doing easy work, which is why it is the one number here we treat as a measure of skill.
XP
A tick when you get one right. You cannot use it to describe skill.
Streak
A note that you were here yesterday. Fine in the nav. We do not freeze it, sell it, or make it the reason to sit down.
What's in the product
A lesson with Gilbert
He writes on a shared board. He asks, then waits. You answer. He checks a skill off only after you use it in your own words.
A project you keep
Every credit has work attached. A video, a campaign, an essay. You keep the file. A university or a first job can read it.
Teacher review
Gilbert marks every deliverable against the rubric and drafts the feedback: a percentage per category, what worked, what to fix. A human teacher reviews your work with objective guardrails and rich feedback.
We don't teach less, we waste less.
Weeks, not a semester
Same curriculum. Waiting on feedback, re-reading what you already know, and sitting until the funded year ends are gone.
Your pace
You move fast on what you already have. You slow down on the gap. Nobody is held back to keep the cohort together.
Now, not a running average
A 60 then a 95 should not become a 77. Your grade is current mastery. Early mistakes do not follow you.
Start a lesson
Open a lesson. Gilbert writes while he talks. Same credit. You finish when you can use it. In Ontario the funded year ends in June.