[Andrew:] It might be a good guess today if I could say that most people either done as much as they could with their model... and had this erm finished, so I asked if they would help me to sort out the erm they nearly did it... brilliant way, remember I had the little labels on them... and they've all got mixed up one way or another so we're here to scrap through the remains of erm and got the wire wool and got them down and washed them, what I would like today if you would be so kind as to assist when you've finished your pottery is to re-label these, now some of you er, have already finished pottery and start straight away, those who only have the finishing touches to do, start half way through the lesson or whatever, but I do intend to give a demonstration now, so, could you gather all round you must know where all the erm if you take a and take a to your desk... and then... the trouble with is about three speed of knots going on this flight here I put them on your desk and then arrange them in the order that you know I approve. Can anybody remember offhand? So it goes, yellow, yellow ochre... erm scarlet red, crimson, that's the dark red, light green, dark green erm, sky blue, indigo... purple, brown and black a lot of people get mixed up
[speaker002:] ...
[Andrew:] I like you that I realize is very so can you see that board there? That's just
[speaker002:] ...
[Andrew:] erm
[speaker003:] Er Emma keep thy hands to thy self otherwise that the eye can induce the old custom of putting them off...
[Andrew:] The goes streamingly across there like that... put as much glue on the back as you can so that they're really well anchored down, leave the... so the outside edge of the square level with the lining, so they're not all skew-whiff. When you come to doing along on the other side make sure they're beautiful parallel does that make sense to everybody? So that's a beautiful block, now... did I explain to you lot yesterday about er, that was yesterday sorry about er collage or pottery
[speaker002:] No
[Andrew:] No, sorry about that, right, now... one should keep they would like to paint their pottery, the fact is if you initially don't paint your pottery with normal paints you paint your pottery with erm oxides which fire well, I'll explain that to you once the er, as the comes through, so if you just wait I'll talk to you again a little bit about that... If you go into the top cupboard, there's a shelf marked and right I'll take through, er, ah... put the a chemical term er difficult question, but you might be able to give me an example of one... aha Okay, that does have oxygen in it, yes, I don't think it's I think you're wrong, not being a specialist can anybody else give me an example of an oxide with that is a metal, but it's not erm an oxide metal nearly all metals have oxides... and those powderless substances on the surface of the which is scraped off and used as so called paint for the pottery, mixed with a little light which is burnt off when the whole thing gets fired in the kiln, so what will have to happen is the, your pots you've done so far, once they're thoroughly dried and go into the kiln, they're fired at a high temperature and then they'll come out this bit fired you'll then separate them with oxide pastes, dip them into glaze, which I'll explain in a minute, and re-fire them at a higher temperature, the glazed would in the heat, once it's cooled down you'll get the familiar appearance of a glossy surface of pottery, with the oxide having also fired and sometimes changed colour and that's your colour underneath, on your base a layer of colour and then a plastic surface... right if I talk about glaze, erm vitrify does, did anybody understand that? Have you heard the term before?... You've heard of glazed before yeah er I don't
[speaker002:] ...
[Andrew:] Mr sir, have you heard the term glazed? Makes it shiny, yes, what is it that is shiny? Specifically
[Michael:] The surface
[Andrew:] The surface, do you know what it's made out of? It's very similar in word
[Michael:] Polish
[Andrew:] It's not polish, it's glass, if you look at the windows, they are familiar glass aren't they? Well actually pottery is covered in a thin layer of glass, so that when your pot is dipped into the glazed solution, it's simply a suspension of silicone in water... which ride on the surface, to leave a powder, which is really finely ground up sand, when you put that into the kiln to fire at a higher temperature it mystifies it, it turns into glass, now it's in its simplest form. I'll have, have to do that later for you because you won't be doing it then, this lesson next year, and if your pots don't go up in the kiln I will be glazing for you, so of course you see the colour and everything we don't have the time to do that, it's a shame, well actually they'll look very smart just with the glaze on, but I'll try and get that done for you, okay, can you put your hand up if there is you need to do today you okay, will you people very carefully go and