Math Katas is a one-week protocol. One Kata per day, every day, for seven days. About fifteen to twenty minutes a session. That's the whole thing.
The most common way I have seen this protocol fail is parents deciding the daily part is optional. They mean well. The kid has soccer Tuesday, a birthday party Saturday, a tired night Wednesday — surely the protocol can flex around those. So they do a Kata Monday, skip Tuesday, do one Wednesday, skip Thursday and Friday, do one Saturday morning. By the end of the week they've done four Katas in seven days, and the kid still doesn't know the table.
This doesn't work. I want to explain why.
What "every day" is actually for
The protocol isn't a schedule. The protocol is a memory technique that happens to take seven days.
Every time a kid completes a Kata, they answer roughly two hundred questions. Some they know on sight. Some they figure out from the eight rules. Some they guess. Some they look up with a calculator. The exact mix doesn't matter. What matters is that by the end of the session, every fact on the table has been retrieved from somewhere — memory, reasoning, or guess — and the answer has gone in.
The next morning, most of those facts are still partly there. Not all the way back to "knew it on sight," but closer than they were before yesterday's Kata. The next Kata picks up at that level and pushes a little further. Three or four sessions in, the easy facts have moved into automatic recall, and the hard facts have started to get visible. By day six or seven, the only facts a kid is still working on are the genuine hard ones — the ones in the middle of the table, the squares of three, four, six, seven, and eight.
That arc only happens because the sessions are close together. Each session builds on the residue of the one before it. The kid isn't memorizing the table once a day for a week — they're memorizing it incrementally, with each session loading what yesterday's session left behind.
What happens when you skip a day
Skipping a day doesn't slow you down by one day. It mostly resets you. Whatever a kid had partly there yesterday is substantially gone forty-eight hours later. The next session isn't a continuation; it's something closer to starting over.
The kid feels this. The first sign of trouble in a once-a-week schedule is that the second session is no faster than the first. The kid is doing the same hard work over again, and they know it. The second sign is that their morale goes down. If you're a parent who's tried weekly and watched it stall, that's the mechanism.
I'm not making any clinical claim here. I'm describing a pattern I have watched over and over for thirteen years.
The honest version
If your week genuinely has no seven consecutive days where you can find fifteen minutes for the kid to do a Kata, the right answer isn't to spread the protocol thinner. The right answer is to wait until you can.
I am being deliberate about this. Math Katas isn't always the right tool. If you're in a season where daily isn't workable, pick a season where it is. The kid does not lose anything by waiting two more weeks until you have a clear seven days. Spreading it across four weeks is more harmful than helpful, because the kid spends the same amount of total study time and comes out the other side with the same problem they started with — and now they also believe the tool doesn't work.
This is the most calibrated, least-marketing claim I will make on this site: a once-a-week schedule has the worst of both worlds. It costs you the time, and it doesn't deliver the result.
What daily actually looks like
For most fourth graders, fifteen to twenty minutes after school, before any screen time. For older kids, fifteen to twenty minutes before bed if the morning isn't workable. For younger kids, sometime in the afternoon when they're alert.
Not optional. Not flexible. Not "we'll see how the day goes." One Kata. Every day. For seven days. After day seven, the protocol is done — they take the timed test on Friday and they're free.
The seven-day commitment is small enough that almost any parent can carve out the time, if they decide in advance to. The thing that goes wrong is treating the schedule as a recommendation rather than the protocol itself.
Pick the week. Run the protocol. Tell your kid it's seven days and then it's done. That's the deal.