Okay, so this may not be strictly canon.
@PoptartProdigy probably has their own ideas about the training sessions, and they may conflict with this, but I couldn't help myself. I tried to make the characterization as accurate as possible based on my memories of the characters.
If it differs from canon in only minor details, I'd be happy to fix those details, of course.
Teacher-Student Ratio
"Right! So,
remember, a few lessons of this isn't the same as meaning it's safe to fight aliens or anything. It takes a LOT of practice to get as strong as the aliens that attacked the school. Let the people who
do fight aliens be the ones to tell you when you get to that level, because I don't want anybody getting hurt."
Jennifer looks curious. "So... no fighting aliens. What about giant monsters? Do you ever get to fight giant monsters?"
You picture the bluenette challenging a raging oozaru. Or, Ancestors forbid, the dragon you saw in your visions. With a power level of, say, fifty. Or for that matter fifty thousand. You blanch. "DEFINITELY no giant monsters. Anyway, you all have to promise not to do anything stupid with this. Got that?"
Gemma and Sophie nod, followed a split second later by Jenny.
"First, before you can learn to channel your energy, we have to teach you how to breathe and stand up right."
Jennifer giggles at that, but Sophie's dragged the gang to enough
Ti Kwan Leep lessons that nobody seems very surprised. Sure, the native martial arts traditions don't make any meaningful use of ki, but there are some similarities. You know some of your ancestors were surprised that the Garenhulders never invented anything like Turtle or Crane school for themselves.
You continue. "Now, these lessons work best if it's one on one, with someone who can see your energy. Maya, you can switch off with me after a while, but who would you like to work with first?
"Gemma? Would that be okay?" Maya looks a bit hesitant, but Gemma nods.
"Okay!" They step aside slightly, sill watching the rest of you.
Jennifer frowns. "So that leaves one of you and three of us. How is that one on one?"
Sophie puts her hands on her hips. "You're a little outnumbered for that, huh?"
Jaron flexed his jaw. "I mean, if you're expecting me to teach anybody-" Sophie brightens at that- "I... don't... knowhowididit." He looks sheepish, flushing a bit. Sophie looks away, slightly disappointed, though you probably wouldn't be able to tell if not for the trickle of ki sharpening your senses.
You smile, an
I've got a secret! smile. Then you close your eyes and adopt a long practiced stance. This is the first time you've done this in front of anyone but your mom. Your ki sense and hearing swim, for a moment, in the familiar way.
Then you say to Jaron, "It's okay, I bet you'll get the hang of it really fast." You say to Jennifer, "Hi! I'm your new ki teacher!" You say to Sophie, "Still got me outnumbered?"
...All at the same time.
Everyone is looking at you now. All three of you. All at once. Jaws drop. Maya is pinging
really obvious ki pulses at you, the pings almost as furious as her blush. Jaron squints.
<
So, like we planned, Two trains Sophie and Three trains Jennifer, while I work with Jaron and see if I can get a few double-meanings through to Jaffur without freaking him out, right?>
<
Uh yeah, we were thinking about that. She'll teach Sophie and I'll handle Jennifer.>
<
Wait, which of us is talking?>
<
Figure it out for yourself, One!> Your other selves turn as one and stick your tongues out at you.
Jenny overcomes the shock first. "So... which two of you are the fakes?" She
would say it that way. But you've been waiting for this moment for a looooong time, even if you never really expected it to happen until the day the aliens attacked the school.
One points at Two and Three. Two at Three and One. And Three completes the triangle, while all three of your clones shout "They're the fakes! I'm the real one! You have to believe me!" Then you all start laughing.
Three recovers first, and you all smile. "No, seriously, we're all Karen. We're all real, and when we stop using the technique we'll all come back together into one Karen. I'll remember everything, so saying it to one of us is the same as saying it to all of us."
Gemma looks at Maya. "Can you do that? Can
I learn to do that? Can- Wait a minute!
Karen you cheat is this how you always have all your homework done by seven o'clock?"
Jaron is still looking with his usual quiet intensity. You can
swear you see a hint of Jaffur for a moment, sizing you up.
Maya, by contrast, looks well and truly sandbagged. "I- I- I-"
Two frowns slightly. <
Okay, everybody? Let's NOT show off more power level next time we spar with her. She looks a little TOO impressed.>
One spreads your hands. "This is a special technique called 'Multiform.' It lets you control and split your energy to make copies of yourself, then re-combine them later. I've been practicing it for years, but I was saving it for a surprise." Maya seems to shrink a little, but if it were possible you'd swear she blushes
harder as she thinks that over.
One continues. "Maya? I could teach it to you, but I'm pretty sure it won't work quite as well for you as it does for me right now. I haven't figured out how to fix that yet, so I don't think it'd be very good for you to use against the aliens. I think we'd be better off just concentrating on the kind of stuff we've already been working on; that worked great against the big one at the school. Some day I
promise I'll get the bugs worked out of Multiform, though." Two and three nod; you're unanimous on this.
Seriously,
some day you'll get Perfect Multiform worked out, and then you won't have to cheat to get multiple "full-power" copies of your Masqued self. Or for that matter your real self.
Sophie looks a little suspiciously. "So if you've taught Maya all these superpower tricks, where did
you learn them from?"
"Some of it's from my dad. A few things, like THIS, I worked on by myself. Aaaaand. Um. Well. Um. Mom doesn't just teach Language Arts."
Sophie looks aghast. "Wait what your mom is secretly
Super-Teacher?"
Jenny shoots a glance at her. "She's just a movie character!"
"Not anymore she's not, it sounds like!"
Chaos ensues.
Eventually you get everyone calmed down to work on their breathing lessons. Eventually.