The Lesson
By OSJJ
Open Source Jiu-Jitsu
THE CURRICULUM SERIES ยท PART NINE
The Lesson: Where Everything Meets for One Hour
Eight pieces have walked from the whole curriculum down to the dials inside a single rep. This is the bottom: the lesson, the smallest unit in which all of it is present at once. What a lesson is, what it is not, and how to tell the difference when you watch one.
Justin Hall / Co-Founder, Open Source Jiu-Jitsu
This series opened with a claim that a majority of academies have classes and do not have a curriculum. Eight pieces later it arrives at the other end of that sentence. A curriculum is made of lessons, and a lesson is the smallest thing in the whole structure that is still complete. Everything above it, the curriculum, the system, the map, the teaching methods, the practice-design dials, the decision to blend, is either present inside a single hour on the mat or it is not present anywhere. The curriculum does not meet the student. The system does not meet the student. The lesson does. This piece is about that unit: what it is, what has to be in it, and how it differs from the thing the series started by naming, which is a class.
It is also the bottom of the descent. The series has been moving from the largest structure to the smallest, understanding each layer before the next, and the lesson is where there is nowhere smaller to go. After this piece the series turns around and starts to build, beginning with the lesson plan and working back up to the curriculum. So this is understanding, not building. How to carve an hour, how long each part should run, how a week of lessons fits together, all of that is on the way back up. The job here is narrower: to know a lesson when you see one.
A class and a lesson are not the same thing
The first piece in this series drew a line between having classes and having a curriculum. The same line runs through the hour itself. A class is an hour on the mat with a technique in it. A lesson is an hour on the mat with a technique in it that was chosen for a reason, sits in a sequence, is delivered in a way that was decided, and ends with the coach knowing whether it landed. The difference is not in what the students did. Two rooms can drill the same scissor sweep for the same forty minutes and one is a class and the other is a lesson. The difference is in what was decided before the hour started and what is known when it ends.
Here is the simplest way to tell them apart, and it is a set of four questions that any coach can ask about any hour they have ever taught.
Why this, today? A lesson has an answer that comes from above it. The curriculum put this technique here, on this day, after that one and before the next. A class has an answer that comes from the coach's mood, or what they drilled yesterday, or what a student asked about on the way in. None of those are bad reasons. They are just not structural ones, and an hour built on them is a class.
Where does this sit? A lesson belongs to something. The technique connects to what the student learned last week and sets up what they will learn next, and ideally the coach can say in a sentence what principle it shares with both. That is the system showing up inside the hour, and the map, if there is one, is how the student is shown the connection. A class is an island. It can be an excellent island. But when it ends, nothing points anywhere.
How is it being delivered, and was that decided? A lesson has a delivery that was chosen for the people in the room. Direct instruction here, a constraint there, a game at the end, the reps run blocked early and mixed later, the feedback held back on purpose. A class has a delivery that happened, usually the same delivery as every other class, because it is the one the coach learned from. The methodologies piece and the two that followed it were about this question, and a lesson is where every one of those decisions either got made or did not.
Did it land, and how do you know? A lesson ends with evidence. The coach watched the drilling, watched the games, watched the rounds, and can say which students have the technique, which are close, and which did not get there, and what to do about the last group next time. A class ends when the clock runs out. The coach has a feeling about how it went, and the feeling is usually good, because the room was busy and nobody complained.
Four questions. If an hour has a real answer to all four, it is a lesson, and it does not much matter what it looked like from the outside. If it has no answer to any of them, it is a class, no matter how good the technique was or how hard the room worked. Most hours in most academies have answers to one or two, and the point of the whole series is to move that number to four.
Written down, the answers to those four questions are a lesson plan. That is all a lesson plan is: the decisions about an hour, made before it starts, in a form you can look at. It is to the lesson what the map is to the system. Some coaches carry it in their head and some carry it on paper, and the second is better for the same reason a map is better than a memory, but either way, an hour with real answers to those questions has one, and an hour without them does not, however neat the paper looks. How to build one is the first thing the second half of this series does.
The four layers, inside one hour
The series has introduced four layers of structure on the way down, and the cleanest way to understand a lesson is to watch all four of them land on one technique in one hour. Take the scissor sweep, on a Tuesday, in a fundamentals class of twenty people.
The curriculum decides that it is the sweep today. Not the coach, in the moment. The curriculum, decided weeks or months ago. In a positional curriculum, closed guard is the position this block and the sweep is Tuesday's job within it. In a rotating curriculum, the sweep is lesson fourteen and lesson fourteen is today. In a linear one, this student is on the sweep because the sweep is next for them. Whichever type, the technique arrived from above, and the coach walked in knowing what the hour was for before anyone was on the mat.
The system decides where it sits. The sweep is not an isolated move. In the room's system it is the thing you do when the top player posts and leans, the answer to a specific pressure, which means it connects backward to the guard retention they drilled last week and forward to the submission that opens up when the sweep gets defended. A coach with a system teaches the sweep as a node, and says so: this is what you do when he does that, and if he stops it, this is what comes next. A coach with a map can show the node. A coach without a system teaches a sweep.
And where it sits depends entirely on which system it sits in, which is the clearest way to see what a system actually does to a technique. Take the two systems from the mapping piece. In a system built on principles of connection and base, the kind Rickson Gracie teaches, the scissor sweep is taught as an exercise in never losing connection. I have watched him teach it, and the whole lesson was one idea: the sweep works only if the connection, the pressure and the tension, is maintained through the entire transition, from the closed guard, through the opening, into the sweep position, and over. Let the tension go slack at any point and the sweep is gone. The technique is the same technique, but its place in the system is as a demonstration of the principle, and that is what the hour is about. In a system built on positional hierarchy, the kind Danaher describes, the same sweep sits somewhere else. It is a pathway. The point of teaching it is that closed guard is a lower rung and mount is a higher one, the sweep is how you climb from one to the other, and the lesson is about why that climb is worth making and what to do when you arrive. Same movement, same hour, two different lessons, because the two systems put the sweep in two different places and the coach who knows which system they are in teaches the one that belongs to it.
The methods and the dials decide how it gets into the student. This is where the teaching methodologies piece, the practice design piece, and the blending piece all arrive at once. Whether the sweep is shown with every detail at once or in layers. Whether the drilling stays blocked for the hour or goes variable partway through. How fast the partner's resistance comes up, and how much the coach says, and when. Whether there is a constraint, a game, live rounds, or none of them. The series has laid out the whole range of what these decisions can be. A lesson does not require any particular setting of them. What it requires is that they were settings, chosen for this room, and not just what the hour happened to turn into.
The blend decides how many ways in are present. The last piece made the case for using more than one method in an hour and was careful to say it is a case, not a rule. The coach decides whether to blend, how much, and which methods, knowing what each one reaches. One hour might run the warm-up as movement problems, the instruction direct, the drilling under a constraint, then games, then live. Another might run direct instruction and drilling and nothing else, on purpose. Both are lessons if the choice was made with the room in mind. Either way, the shape of the hour repeating from one Tuesday to the next is what lets a student know what is coming.
Four layers, one hour, one technique. Remove the first and the sweep is there because the coach felt like it. Remove the second and it is a trick with no neighbors. Remove the third and it is delivered however it comes out. Remove the fourth and nobody ever asked who the hour was reaching. The lesson is the only place where the absence of any of them becomes visible, because it is the only place where the student is actually present.
One lesson, read as a unit. The structure above the hour never moves. The delivery moves through it. Each kind of student has a part built for them, and knows when it is coming. Illustrative, not data.
The parts of a lesson
A lesson has parts, and it is worth naming them here as understanding, even though how long each one runs and how they are sequenced is a building question for the next half of the series. The names matter because a coach who can see the parts can see where each method lives and where each decision gets made. Different academies carve the hour differently and the names vary. The set below is the full range of parts an hour can contain, in roughly the order they tend to run. It is not a description of what a majority of academies do. Two or three of these is the most common shape by a wide margin, usually a warm-up, a long instruction block, and live rounds, and a forty-five-minute lecture followed by rolling is not rare. Some instructors run two parts on purpose. Some find a way to fit all seven into an hour. Most sit somewhere between, and a majority have never looked at the hour as parts at all.
The opening. A minute or two at the start where the student is told what today is, where it sits, and why. This is the advance organizer from the methodologies piece, and it is the part that gets skipped most often, which is a shame because it costs nothing and it is the moment the system becomes visible to the student. "Today is the scissor sweep. Last week you learned to keep the guard closed when he postures. This is what you do with that posture once you have it."
The warm-up, or what replaces it. The movement before the technique. In a class it is laps and jumping jacks. In a lesson it is movement that belongs to the technique, the hip motion, the grips, the leg positions, set up as small problems with a partner, so that the body has already done the shapes it is about to be asked for. Some lessons have no separate warm-up at all; a well-built hour can warm the room up through its own structure, with the first phase doing the job. Either way, in a lesson the warm-up is not a separate thing that happens before the lesson starts. It is the first part of it.
The instruction block. The technique is shown and explained. This is where direct instruction lives, and where the practice-design decisions about demonstration happen: silent first, layered, whole or in parts. It is usually the shortest part of the hour and the one coaches spend the most of the hour on.
The drilling block. The technique is practiced with a partner. This is where the bulk of the practice-design dials turn: blocked or random, constant or variable, how much resistance, how much feedback. In a class it is forty identical reps because that is what drilling is. In a lesson it is forty identical reps, or three angles, or a rising resistance ladder, because that is what was chosen.
The constrained block. The technique inside a narrowed situation with a goal. A constraint game, a positional round with a win condition, a specific-resistance drill. This is where the constraints-led approach, game-based learning, and the upper rungs of the resistance ladder live. It is the part most likely to be missing from a class, and the part the practice-design and constraints-led pieces argued does the most to turn a drilled technique into an owned one.
Live rounds. Full resistance, the technique on its own. This is the only part of the hour where the student needs everything they have, which is why it comes last, and why a lesson that ends at the drilling block has stopped before the point.
The close. Thirty seconds. What was today, where it goes next, and anything the coach saw that the room should know. It mirrors the opening, and it is where the coach's evidence from the hour gets turned into the first decision about the next one.
Not every lesson has every part, and a lesson with three parts chosen on purpose is still a lesson. The next half of the series will take up which ones to use and how long to run them. What matters here is the recognition: a lesson is made of parts, each part is where particular methods and decisions live, and a coach who can name the parts can look at any hour and see exactly which layers of the structure were present and which were not.
Reading a lesson
There is a practical skill in all of this that is worth making explicit, because it is the skill that the build half of the series assumes. It is the ability to watch an hour on the mat and read it. Not judge the technique. Read the structure.
Watch for the opening. Was the student told why today, and where it sits? If not, the curriculum and the system may exist in the coach's head, but they did not reach the room. Watch the instruction. Was it shown before it was explained? Did the detail come in layers, or all at once? Watch the drilling. Did it change shape, or was it the same rep for forty minutes? Did the partner's resistance ever go up? Did the coach correct everything, or let some of it go by? Watch for a constraint, a game, a narrowed situation with a goal. Watch whether the hour ended live. And watch the coach at the end: do they know who got it?
Do that for a few hours and the four questions from the start of this piece answer themselves. A coach who can read a lesson can read their own, which is the first step to building one, and can read anyone else's, which is how the methods in this series stop being a theory and start being a way of seeing.
The bottom, and the turn
That is the descent. It started with the claim that classes are not a curriculum, and defined what a curriculum is and the four types it comes in. It separated the curriculum from the system, the ordered list from the logic that connects it, and showed how a system is made visible on a map. It found the third axis, the teaching methodology, by running one methodology through a test, then mapped the whole field of them, then went inside them to the dials that govern a single rep, then made the case for using more than one. And now it has arrived at the lesson, the one place where every layer above it is either present or absent, because it is the one place the student is.
Everything on the way down has been understanding. Nothing has been built. That was deliberate, and the next piece is about why: why the series refused to build anything until the whole structure was understood from the top, what happens when a coach builds without that understanding, and what the second half of the series is going to do about it. After that, the building starts, and it starts here, with the lesson, and works its way back up.
Open Minds. Open Mats. Open Source.