0:00:02 > 0:00:04# In an ordinary sofa In an ordinary room
0:00:04 > 0:00:08# There are extraordinary heroes who are standing by to zoom...
0:00:08 > 0:00:11# To wherever they are needed They are speeding out today
0:00:11 > 0:00:13# The Numberjacks are on their way
0:00:15 > 0:00:18# They will help you with your problems
0:00:18 > 0:00:21# They are waiting for your call
0:00:21 > 0:00:24# No problem is too big for them
0:00:24 > 0:00:26# No problem is too small
0:00:26 > 0:00:29# Things may all be going wrong but you can bet it's not for long
0:00:29 > 0:00:32# The Numberjacks are on their way
0:00:32 > 0:00:35# The Numberjacks are on their way! #
0:00:35 > 0:00:40Now, this isn't easy, One, but you might as well have a go.
0:00:43 > 0:00:48You jump on to the jump pad, and then onto the paper to make a one.
0:00:48 > 0:00:49Mmmm, yeah.
0:00:52 > 0:00:56Oh, dear. Still, I said it wasn't easy.
0:00:56 > 0:01:00Oh, do you want a go?
0:01:00 > 0:01:06- Well, why not? Your buddy block is going to have a go.- Oooh.
0:01:08 > 0:01:10Excellent.
0:01:10 > 0:01:14I knew it. My buddy blocks want a go, now.
0:01:14 > 0:01:17All right, then. Get together...
0:01:17 > 0:01:19Go for it!
0:01:21 > 0:01:23Yeah!
0:01:23 > 0:01:24That looks good.
0:01:24 > 0:01:28Making big squares, and little squares.
0:01:28 > 0:01:32Yes, we've got some very clever buddy blocks here.
0:01:32 > 0:01:35More buddy blocks want to join in.
0:01:35 > 0:01:39- Will they make a square, too? - Just watch them.
0:01:41 > 0:01:44That's it! And, go!
0:01:46 > 0:01:49Yeah! Another great square!
0:01:49 > 0:01:50One, four and nine.
0:01:50 > 0:01:54- Numbers who make squares... - ..with our buddy blocks.
0:01:54 > 0:01:57Got to go. Might be off on a mission.
0:01:57 > 0:01:58Never mind, One.
0:01:58 > 0:02:02Maybe I'll take you out somewhere, later.
0:02:12 > 0:02:17- Come on, Four. What have you been doing?- Making squares.
0:02:17 > 0:02:19Agent 22's calling in!
0:02:19 > 0:02:22Things are going wrong!
0:02:22 > 0:02:23But not for long!
0:02:23 > 0:02:25On the screen.
0:02:29 > 0:02:30He LOOKS all right.
0:02:30 > 0:02:32But look what happens!
0:02:35 > 0:02:37He's starting to dance!
0:02:37 > 0:02:39Wow!
0:02:43 > 0:02:45Is he going to risk it again?
0:02:54 > 0:02:57I wouldn't want to be dancing like that.
0:02:57 > 0:02:59- Can you send someone?- Definitely!
0:02:59 > 0:03:04- Dear, dear!- Four looks keen on dancing.- I am not!
0:03:04 > 0:03:07- Excellent! Four's going out! - Thanks!
0:03:09 > 0:03:11# We've got a problem, what shall we do?
0:03:11 > 0:03:14# Who's going out there, who do we choose?
0:03:14 > 0:03:16# We've got a problem to explore
0:03:16 > 0:03:20- # Who's going out there? - Number Four! #
0:03:44 > 0:03:46Checking the room's clear...
0:03:53 > 0:03:54All clear!
0:04:02 > 0:04:06Four! Three! Two! One! Zero!
0:04:13 > 0:04:16Finding a four...
0:04:16 > 0:04:17A four...
0:04:20 > 0:04:22Found a four!
0:04:25 > 0:04:27I'm here!
0:04:27 > 0:04:29Good! Cos there's more problems!
0:04:29 > 0:04:32Agent 41 here. Look at this!
0:04:32 > 0:04:36Oh, no!
0:04:44 > 0:04:47Everybody's dancing! They can't stop themselves!
0:04:47 > 0:04:51It's Agent 79 here. Look what the children are playing on.
0:04:51 > 0:04:53It's Agent 95 here.
0:04:53 > 0:04:56They're on squares, just like the boy on the mat!
0:04:56 > 0:05:00- Are we sure they're squares? - Looking at them...
0:05:00 > 0:05:03Yes! It's a square!
0:05:03 > 0:05:05What about the other children?
0:05:09 > 0:05:11Squares again!
0:05:11 > 0:05:13Maybe it's the squares.
0:05:13 > 0:05:17- The squares are making them dance. - It's square dancing!
0:05:17 > 0:05:21OK, but you have to ask - why?
0:05:21 > 0:05:24- Four...- I mean, what sort of strange...
0:05:24 > 0:05:28- Four!- ..would take a harmless shape like a square, and...
0:05:28 > 0:05:30- ALL: FOUR!- What?
0:05:30 > 0:05:32Behind you!
0:05:32 > 0:05:38- Aaagh! The Shape Japer!- Here's what we know about the Shape Japer.
0:05:38 > 0:05:41Looks like the Shape Japer's back.
0:05:42 > 0:05:47# Shape Japer, she's really very strange
0:05:47 > 0:05:51# Shape Japer, she loves to make things change
0:05:51 > 0:05:56# Changing faces, changing size
0:05:56 > 0:05:59# Changing shapes every single time
0:05:59 > 0:06:04# Changing shapes is the Japer's game
0:06:04 > 0:06:07# The Shape Japer's back again! #
0:06:11 > 0:06:14We're...DANCING!
0:06:14 > 0:06:18The Shape Japer is using squares to make people dance!
0:06:18 > 0:06:20Even if they don't want to!
0:06:20 > 0:06:24She's looking for more people, to make them dance!
0:06:24 > 0:06:27She'll be all right. She's not near a square.
0:06:27 > 0:06:30Square dancing!
0:06:38 > 0:06:41She's certainly dancing!
0:06:46 > 0:06:49How come the lady started dancing?
0:06:51 > 0:06:53She's got squares on her top.
0:06:53 > 0:06:56First, it was people who were on squares.
0:06:56 > 0:06:59Now it's squares that are on people.
0:06:59 > 0:07:03Oh, no! Anyone with squares on them might be made to dance,
0:07:03 > 0:07:05when they don't want to!
0:07:05 > 0:07:07Four! Check that man!
0:07:07 > 0:07:09He seems all right.
0:07:09 > 0:07:12Just some diamond patterns on his tie.
0:07:12 > 0:07:16Square dancing!
0:07:16 > 0:07:18He won't be dancing!
0:07:18 > 0:07:19Oh no!
0:07:22 > 0:07:25Ha ha ha ha ha ha ha!
0:07:27 > 0:07:29I thought it was diamonds, but...
0:07:29 > 0:07:34These diamonds are squares that have been tipped over a bit.
0:07:36 > 0:07:39It looks like anything to do with squares
0:07:39 > 0:07:42could get people square dancing!
0:07:42 > 0:07:45If you had a diamond on your T-shirt,
0:07:45 > 0:07:51it could be a tipped-over square, so you'd be square dancing!
0:07:51 > 0:07:54And if your bath was on square tiles,
0:07:54 > 0:08:00your bath might start square dancing, and throw the water out!
0:08:00 > 0:08:05And if your house had squares on it, like square windows,
0:08:05 > 0:08:10your whole house might start square dancing, and throw EVERYTHING out!
0:08:12 > 0:08:14We've got to stop that Shape Japer!
0:08:14 > 0:08:22- There she is!- Oh no!- Square dancing! Ha ha ha ha ha!- Oh no!
0:08:22 > 0:08:28Hey! No! How come I'm dancing? Woah! There are no squares on me!
0:08:28 > 0:08:33- Why is Four dancing? - What's Four got to do with squares?
0:08:34 > 0:08:37It's because four things can make a square.
0:08:37 > 0:08:40Like Four's buddy blocks made a square.
0:08:40 > 0:08:45Yes, got it on screen! Four buddy blocks make a square!
0:08:45 > 0:08:49You're a square sort of number, Four!
0:08:49 > 0:08:55Which is fine, except when I'm made to do square dancing!
0:08:55 > 0:08:59SHE LAUGHS
0:08:59 > 0:09:03Square dancing! Ha ha ha ha ha!
0:09:03 > 0:09:06Oh no! Who's going to help Four?
0:09:06 > 0:09:12Look! Nine's out there, taking One for a trip!
0:09:12 > 0:09:16Lucky she was. Nine! Can you help Four?
0:09:16 > 0:09:17I'll certainly try.
0:09:17 > 0:09:21The Shape Japer's making square numbers do square dancing!
0:09:21 > 0:09:25- Phew.- Hmmm.- Hey! Nine!
0:09:25 > 0:09:27You two had better watch out.
0:09:27 > 0:09:31- Your buddy blocks made squares too, remember?- Got it on screen.
0:09:34 > 0:09:36Use Brain Gain to make safe squares.
0:09:36 > 0:09:39One and Nine can make safe squares.
0:09:39 > 0:09:42- Sounds good to me! - We'll need some Brain Gain.
0:09:42 > 0:09:44I can do it!
0:09:44 > 0:09:47We'll make squares that everyone can be safe in!
0:09:53 > 0:09:55# Brain Gain, Brain Gain
0:09:55 > 0:09:57# To sort the problem, use our brains
0:09:57 > 0:10:00# The way to get your brains all linking
0:10:00 > 0:10:01# Up together, joined-up thinking. #
0:10:01 > 0:10:05Getting Brain Power now. Brain Gain!
0:10:06 > 0:10:11I'm thinking squares! Squares! Squares!
0:10:11 > 0:10:13Safe squares, safe squares.
0:10:18 > 0:10:20- Ooh.- You can do it, One.
0:10:20 > 0:10:22Make a safe square.
0:10:25 > 0:10:28That's a safe square, so the boy can stop dancing.
0:10:32 > 0:10:35Square dancing!
0:10:35 > 0:10:36Square safe.
0:10:42 > 0:10:47- Quick! We need a bigger one for the man and the woman!- I'll do it!
0:10:47 > 0:10:49Sending Brain Gain!
0:10:52 > 0:10:58One, two, three, four little squares...
0:10:58 > 0:11:00..make one big square!
0:11:03 > 0:11:05THEY SIGH IN RELIEF
0:11:05 > 0:11:07Square dancing!
0:11:07 > 0:11:08Square safe!
0:11:08 > 0:11:11SHE HISSES
0:11:15 > 0:11:18Need a big safe square for all these kids.
0:11:18 > 0:11:24I can do it! Safe square! Safe square! Safe square!
0:11:26 > 0:11:32One, two, three, four, five, six, seven, eight, nine little squares...
0:11:32 > 0:11:35..make one big safe square!
0:11:38 > 0:11:41Square dancing!
0:11:41 > 0:11:45- Square safe! - We're all inside the safe squares.
0:11:46 > 0:11:48We've won.
0:11:48 > 0:11:50Square dancing! Square dancing!
0:11:50 > 0:11:54- The Shape Japer's not happy. - Square dancing!
0:11:54 > 0:11:57SHE SCREAMS
0:11:57 > 0:12:01- Did it!- Come back now, One, Four and Nine.
0:12:01 > 0:12:04Three famous square numbers.
0:12:12 > 0:12:14All clear for landing!
0:12:15 > 0:12:22One, two, three, four, five, six, seven, eight, nine!
0:12:30 > 0:12:34- Well done, everyone! - Check it all out on screen.
0:12:34 > 0:12:38The boy on the square mat got dancing.
0:12:38 > 0:12:41And the children on the hopscotch squares.
0:12:41 > 0:12:44The lady had a square on her blouse.
0:12:44 > 0:12:48The man had diamonds on his tie. Diamonds are squares.
0:12:48 > 0:12:50That Shape Japer, up to her tricks.
0:12:50 > 0:12:54She got me dancing. Oh, no.
0:12:54 > 0:12:57And Nine and One helped Four make safe squares.
0:12:57 > 0:12:59One small square for the boy.
0:12:59 > 0:13:02Four small squares make a big one.
0:13:02 > 0:13:06And nine squares make a big square, for all the children.
0:13:06 > 0:13:09Goodbye for now, Shape Japer. Yee-ha!
0:13:10 > 0:13:14Now, can our buddy blocks make an even bigger square?
0:13:18 > 0:13:22- I don't think so. - And one's joining in...
0:13:24 > 0:13:28No. We need some more buddy blocks to finish that square.
0:13:28 > 0:13:32So, how many buddy blocks will we need all together
0:13:32 > 0:13:37to make a bigger square? Find out, and call the Numberjacks.
0:13:41 > 0:13:44Subtitles by Red Bee Media Ltd 2007
0:13:44 > 0:13:47E-mail subtitling@bbc.co.uk
0:13:47 > 0:13:50# The Numberjacks are on their way
0:13:50 > 0:13:52# The Numberjacks are on their way! #