**D.C.G...Before/After**

IRA 1916

Hope to have 30% out of 40 from the project and 50% out of the one wednesday so that'll give me 60% overall, be delighted

MattHelders

IRA 1916 wrote: »

Hope to have 30% out of 40 from the project and 50% out of the one wednesday so that'll give me 60% overall, be delighted

Exactly what I'm hoping for. I got 55 in my mocks so hopefully I'll be alright

Mayo_Boy

earwax_man wrote: »

I just want this over with, I want summer. -___-

Same as that. Roll on 5.00pm wednesday!!

Mista

Has anyone ever looked at the marking schemes for DCG? Its ridiculous, you get nearly all the marks for the easy parts, and feck all for the harder bits.

MattHelders

Mista wrote: »

Has anyone ever looked at the marking schemes for DCG? Its ridiculous, you get nearly all the marks for the easy parts, and feck all for the harder bits.

Thats the best part. You get 15 out of 45 for setting the question up I think

IRA 1916

MattHelders wrote: »

Thats the best part. You get 15 out of 45 for setting the question up I think

For just drawing the given views??

Togepi

Mista wrote: »

Has anyone ever looked at the marking schemes for DCG? Its ridiculous, you get nearly all the marks for the easy parts, and feck all for the harder bits.

It's brilliant. 22/45 for interpenetration for just copying down what's given! :pac:

Wanchor

Our teacher never went into what those maps are on the exams. Whenever I asked, he shunned me and gave me that leave-it-alone-if-you-value-your-life. They look so pretty.

John Mullally

Hoping for an A1 in DCG. Its my favourite subject and i cant wait for it. Our teacher said that you gget a good few marks for setting up the question. Even if ya dont know how to do it, just copy the question down onto the sheet. Use light lines and show all construction lines clearly. Dotted lines for anything hidden. Spend a while on the short questions he said : they are worth the same as a long question and a half. Other than this, good luck...!!

Mista

Wanchor wrote: »

Our teacher never went into what those maps are on the exams. Whenever I asked, he shunned me and gave me that leave-it-alone-if-you-value-your-life. They look so pretty.

We never did them either.. and our teacher absolutley refused to do assemblies.. they look handy enough

Togepi wrote: »

It's brilliant. 22/45 for interpenetration for just copying down what's given! :pac:

Yep, and you get feck all for harder parts, like traces of a plane.

IRA 1916 wrote: »

For just drawing the given views??

Depends on the question, but you get around half the marks for it.. so if your running out of time, just stop what your at and go on to your next question :pac:

Mista

John Mullally wrote: »

Hoping for an A1 in DCG. Its my favourite subject and i cant wait for it. Our teacher said that you gget a good few marks for setting up the question. Even if ya dont know how to do it, just copy the question down onto the sheet. Use light lines and show all construction lines clearly. Dotted lines for anything hidden. Spend a while on the short questions he said : they are worth the same as a long question and a half. Other than this, good luck...!!

You to :P Fair play to ya if ye get your A1, I'm hoping for a B2 at highest.. project wasn't great I'm not in a great way for the short questions actually.. probably should practice some more :P

John Mullally

Wanchor wrote: »

Our teacher never went into what those maps are on the exams. Whenever I asked, he shunned me and gave me that leave-it-alone-if-you-value-your-life. They look so pretty.

you mean those ''roads'' questions. Fair play to your teacher, they are real bast**d of a question. You should thank your teacher, and for everyone else, stay away from roads if ya want a good mark...!!

Togepi

Mista wrote: »

Yep, and you get feck all for harder parts, like traces of a plane.

That's good for me though because our teacher used to always leave the very last parts out. :eek: I'd love an A in it, should get an A for my project (got a B1 in it last year) but I'd be doing very well to get a high B!

ImFudged

Easy A. Nice way to end 2 weeks of handy worthless crap

celtic10000

John Mullally wrote: »

you mean those ''roads'' questions. Fair play to your teacher, they are real bast**d of a question. You should thank your teacher, and for everyone else, stay away from roads if ya want a good mark...!!

They're actuly really easy but it hard to get the stratum bits. its a very handy question to get a guaranteed 30/45 at least if you know what your doing. Cant really practice them tho without any maps

bokkenspiel

i did this bottle, took forever because i went into all the detail of the neck and mated 60+ diamonds one by one

celtic10000

Anyone who does GEOLOGIC GEOMETRY do ye know where to draw the semi circle to get the tangent for the slope? Is it from the centre of the road or from the edge of the road? or does it even matter?

mathstalk

celtic10000 wrote: »

Anyone who does GEOLOGIC GEOMETRY do ye know where to draw the semi circle to get the tangent for the slope? Is it from the centre of the road or from the edge of the road? or does it even matter?

Edge I think.

clio94

celtic10000 wrote: »

Anyone who does GEOLOGIC GEOMETRY do ye know where to draw the semi circle to get the tangent for the slope? Is it from the centre of the road or from the edge of the road? or does it even matter?

Yeah its from the edge .. *Fill cone at the high end of the road* I have that engraved in my brain forever :P

mathstalk

Just came up with a good idea for those killer "intersecting object" questions. Bring a ball of bluetac in with you. If you're finding it difficult to visualise how the objects will cut each other. Spend 5 minutes moulding it out with the bluetac. Your set-squares and compasses should be good enough precision tool to form a quick model.

This also works for solids in contact and tangent planes:

earwax_man

celtic10000 wrote: »

Anyone who does GEOLOGIC GEOMETRY do ye know where to draw the semi circle to get the tangent for the slope? Is it from the centre of the road or from the edge of the road? or does it even matter?

Always the edge. Also keep heights in mind at the edge of the cone if it's rise or fall

mathstalk wrote: »

Just came up with a good idea for those killer "intersecting object" questions. Bring a ball of bluetac in with you. If you're finding it difficult to visualise how the objects will cut each other. Spend 5 minutes moulding it out with the bluetac. Your set-squares and compasses should be good enough precision tool to form a quick model.

This also works for solids in contact and tangent planes:

Is that allowed?

celtic10000

mathstalk wrote: »

Just came up with a good idea for those killer "intersecting object" questions. Bring a ball of bluetac in with you. If you're finding it difficult to visualise how the objects will cut each other. Spend 5 minutes moulding it out with the bluetac. Your set-squares and compasses should be good enough precision tool to form a quick model.

This also works for solids in contact and tangent planes:

smart idea but id say by the time you have the blu-tac model made you would have figured out the question already :P

Wanchor

mathstalk wrote: »

Just came up with a good idea for those killer "intersecting object" questions. Bring a ball of bluetac in with you. If you're finding it difficult to visualise how the objects will cut each other. Spend 5 minutes moulding it out with the bluetac. Your set-squares and compasses should be good enough precision tool to form a quick model.

This also works for solids in contact and tangent planes:

That's a fantastic idea! Another tip from my textbook when doing cycloid is to take in a piece of tracing paper and draw a circle on it.

Togepi

Wanchor wrote: »

That's a fantastic idea! Another tip from my textbook when doing cycloid is to take in a piece of tracing paper and draw a circle on it.

That's brilliant but you're not allowed to bring any extra paper into the exams, I doubt it's any different for DCG.

Wanchor

Togepi wrote: »

That's brilliant but you're not allowed to bring any extra paper into the exams, I doubt it's any different for DCG.

Well, taking into account the wide variety of tools considered equipment, I'm sure this would be no different. I mean you can bring in those bendy, stiffy rubber things for drawing curves. I think it's the fact that it's paper that may make them suspicious. A glass block and a sharpie then maybe?

Togepi

Yeah you could probably get a sharpie and a piece of glass or plastic (ie. a spare set square or protractor) and work away using those. Handy!

Wilwarin

Any extra marks for borders/title block? how should I layout the page before starting?

Mayo_Boy

I really need to start studying properly for this

bohemian rhapsody

Any predictions for DCG anyone??

JailB8 xoxo

bohemian rhapsody wrote: »

Any predictions for DCG anyone??

my prediction is we'll all do disgustingly ****/average but still get alright marks because of the project