0:05:50 > 0:05:57.
0:06:02 > 0:06:03It's a brand-new term,
0:06:03 > 0:06:06and CBBC have sent these four magicians back to school.
0:06:06 > 0:06:08They're pretending to be supply teachers
0:06:08 > 0:06:13so that they can perform amazing magic on unsuspecting classes.
0:06:13 > 0:06:16But because you know and love them,
0:06:16 > 0:06:18this time we've cunningly disguised them.
0:06:29 > 0:06:32This time it's John pretending to be a supply teacher
0:06:32 > 0:06:34and trying to fool another class.
0:06:34 > 0:06:37The disguise is on, the hidden cameras are set.
0:06:37 > 0:06:40Now, it's good to be here, today I'm going to give you a lesson,
0:06:40 > 0:06:43a special lesson on a type of personal hygiene.
0:06:43 > 0:06:45Not washing and cleaning your teeth,
0:06:45 > 0:06:48but other things we do to help keep ourselves looking smart.
0:06:48 > 0:06:52Put your hand up if you clean your shoes. That is impressive.
0:06:52 > 0:06:54Put your hands down.
0:06:54 > 0:06:57I clean my own shoes, but it's not as popular as it used to be.
0:06:57 > 0:07:01You do see people cleaning shoes at stations and at airports.
0:07:01 > 0:07:04And hotels, as well, would clean your shoes.
0:07:04 > 0:07:06I've actually got hold of one of the machines
0:07:06 > 0:07:08they use to clean shoes in a hotel.
0:07:08 > 0:07:10I thought I would show you how it works.
0:07:10 > 0:07:13I haven't had a full chance to read the instructions,
0:07:13 > 0:07:15they came in this box with a few other things.
0:07:15 > 0:07:18I'm just going to leave them there.
0:07:18 > 0:07:19Note, that is a sealed box,
0:07:19 > 0:07:22that will become important to the trick later.
0:07:22 > 0:07:25I need somebody whose shoes need cleaning.
0:07:25 > 0:07:27- What's your name?- Miss Smith.
0:07:27 > 0:07:29Would you mind loaning me one of your shoes?
0:07:29 > 0:07:32Miss Smith is the class's regular teacher.
0:07:32 > 0:07:34She's in on the secret that John is a magician,
0:07:34 > 0:07:36but doesn't know what the trick is.
0:07:36 > 0:07:38That shoe looks quite clean already,
0:07:38 > 0:07:41but we'll see if we can polish it up and make it a little bit better.
0:07:41 > 0:07:42That's great, thanks.
0:07:42 > 0:07:45When this shoe gets polished in a hotel,
0:07:45 > 0:07:49you might put a little tag on, a little tag like this one.
0:07:49 > 0:07:53I'm going to ask Miss Smith if you can write your name on this tag
0:07:53 > 0:07:55and maybe a random room number for me.
0:07:55 > 0:07:58Just write your name and any room number at all on there.
0:07:58 > 0:08:01Miss Smith is tagging her shoes so that we know it is hers
0:08:01 > 0:08:03later in the trick. But what's going to happen?
0:08:03 > 0:08:06That's your first name, Siobhan. Wonderful.
0:08:06 > 0:08:09And you've decided you are in hotel room number seven, wonderful.
0:08:09 > 0:08:12We'll just tie it to the shoelace like that.
0:08:12 > 0:08:15The machine is very quick and easy to use.
0:08:15 > 0:08:18You put the shoe in the machine like this.
0:08:18 > 0:08:24And we need to add a little bit of the shoe-cleaning spray.
0:08:28 > 0:08:29And then we just need to turn it on.
0:08:29 > 0:08:33Because it's remote control I don't need to touch the machine,
0:08:33 > 0:08:36I just need to press the buttons on the remote control which is two,
0:08:36 > 0:08:38three, action and it will...
0:08:38 > 0:08:40- Bear with him.- It should start.
0:08:40 > 0:08:42Is anything happening yet?
0:08:44 > 0:08:45- PUPILS:- It's smoking.
0:08:45 > 0:08:48What? All right, calm down.
0:08:48 > 0:08:50I hope Miss Smith's shoes are OK in there.
0:08:50 > 0:08:53Maybe that's worked, maybe...
0:08:55 > 0:08:58Maybe...maybe it's all clean.
0:08:59 > 0:09:01Oh, dear.
0:09:04 > 0:09:06They can't believe it.
0:09:06 > 0:09:08I think that might be meant to happen.
0:09:08 > 0:09:10I think, um...
0:09:10 > 0:09:14You see, if that happens you do get, you get one of these.
0:09:14 > 0:09:17This is a shoe-cleaning cloth.
0:09:17 > 0:09:23If I just put the shoe in there like so, that's it.
0:09:23 > 0:09:27And if we just give the cloth a little bit of a polish like this,
0:09:27 > 0:09:29what happens is...ah...
0:09:29 > 0:09:31Where's it gone?
0:09:31 > 0:09:34It's all right, I know what's gone wrong.
0:09:34 > 0:09:38I've... I should've read the instructions. Just hold on a second.
0:09:38 > 0:09:41Remember, the instructions are in the sealed box.
0:09:41 > 0:09:44- The shoe magic is about to get shinier.- Calm down.
0:09:44 > 0:09:47We'll just have a look in here.
0:09:48 > 0:09:51All right, everybody quiet. Let's have a look at the instructions.
0:09:51 > 0:09:55I'm sure they will tell us what's gone wrong.
0:09:55 > 0:09:59Do not use the device unless you have read the instructions,
0:09:59 > 0:10:03yes, knew that. Here we go.
0:10:04 > 0:10:08If the shoe gets damaged during the cleaning process,
0:10:08 > 0:10:13please use the spare shoe enclosed with the instructions.
0:10:17 > 0:10:19It must be this one.
0:10:19 > 0:10:21CHILDREN GASP
0:10:23 > 0:10:26Miss Smith, is that the name you wrote on the shoe?
0:10:26 > 0:10:28- And is that the room number you chose?- It is.
0:10:28 > 0:10:31Isn't that a fantastic device? Incredible.
0:10:31 > 0:10:33But it's time for John to own up.
0:10:33 > 0:10:37I have got to come clean, I'm not really a teacher.
0:10:37 > 0:10:40I'm actually a magician and you're going to be on a CBBC show
0:10:40 > 0:10:42called Help My Supply Teacher's Magic.
0:10:42 > 0:10:45And there's the camera there, there's a camera here,
0:10:45 > 0:10:48and there's a camera over there.
0:10:48 > 0:10:52An amazing trick, and this class didn't realise.
0:10:58 > 0:11:01Subtitles by Red Bee Media Ltd