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# GCSE Maths Vector watch

1. a) I don't get how = +

b) For b) why does it have to be = +

Why not ? = +
2. (Original post by uer23)
...
Vectors have direction.

=
3. (Original post by Mr M)
Vectors have direction.

=
How can we say \vec{OP} = \vec{OT} + \vec{TP}

I still don't get it, how can adding the two side of the triangle give us the length of \vec{OP}
4. (Original post by uer23)
How can we say \vec{OP} = \vec{OT} + \vec{TP}

I still don't get it, how can adding the two side of the triangle give us the length of \vec{OP}
It doesn't give the length. There's your problem.
5. (Original post by uer23)
How can we say \vec{OP} = \vec{OT} + \vec{TP}

I still don't get it, how can adding the two side of the triangle give us the length of \vec{OP}
Vectors take you from one place to another (at GCSE)

So, to get from O to P you can either go direct OP

Or you can go via T ... OT + TP

Since these both take you from O to P they are the same in terms of vectors
6. Think of vectors as a 'road system'.

To get to P from O we can go directly OP or we can go OT then TP; does that help?
7. Ha, ha - great minds think alike TenOfThem
8. In General if you want XY you can write XM + MY... as long as the two middle letters are the same it will work .
9. (Original post by Muttley79)
Ha, ha - great minds think alike TenOfThem
I actually take toy cars in when we are doing vectors
10. So do I! With my weaker students it really helps with understanding vectors have direction too.

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