# Talk

## DH has been teaching DS1 about convex hulls

(25 Posts)
noid Sat 04-Jun-11 21:04:18

He's 5 ffs. Don't you think he'd be better learning how to ride a bike without stabilisers?

noid Sat 04-Jun-11 21:05:05

"they're only two-dimensional convex hulls. I don't see the problem"

Donki Sat 04-Jun-11 21:09:48

If your DS was interested in convex hulls, then what is the problem?

5 year olds are interested in all sorts of things. It's not as if it will prevent him learning how to ride a bike...

KingofHighVis Sat 04-Jun-11 21:10:04

Maybe you will have to teach him to ride his bike.

thelittlefriend Sat 04-Jun-11 21:10:41

eh? Can't he teach him the bike riding next?

noid Sat 04-Jun-11 21:11:14

donki this was lighthearted. DH says he likes you. I'm sure DS1 wasn't very interested in convex hulls but tolerated it with fortitude.

Sat 04-Jun-11 21:16:52

Your 5yo is brighter than me if he understood them

I can ride a bike though

Donki Sat 04-Jun-11 21:17:08

I'm no good at projecting emotions - didn't mean to sound "heavy"

What the feck is a convex hull?

orienteerer Sat 04-Jun-11 21:21:00

Can't see a problem

nijinsky Sat 04-Jun-11 21:21:23

Convex is only the opposite of concave. Its a basic shape. Good thinking to give an example of a ship to help him with it.

Sat 04-Jun-11 21:23:17

Message withdrawn at poster's request.

noid Sat 04-Jun-11 21:33:05

The thing is, if you're a child of one or more mathematicians, you'll pick up this stuff anyway. What you need is to be hothoused in social and sporting skills, then you'll have some chance of turning out normal He already knows more infinite arithmetic than he's been taught finite arithmetic at school and he confuses his friends by proving to them how infinity seconds is actually the same as infinity hours.

Bike skills needed I think. And football.

Sat 04-Jun-11 21:38:27

Message withdrawn at poster's request.

IgnoringTheChildren Sat 04-Jun-11 21:44:16

Will your DH be setting DS1 a test on them later? Because that would be a little unreasonable...

SunshineisSorry Sat 04-Jun-11 21:50:39

YABU, if your DH is telling him about convex hulls in an exciting and interesting way, then its brilliant, im frankly skeptical as to how this can be portrayed as exciting but im just a lowly biologist. Seriously, if your DH is as passionate about mathematics as he seems then this will rub off on your DS and he has a whole plethora (sp) of joy ahead of him. I wish someone would have inspired me about maths at such a young age then i would have learnt to love it and not be afraid of it, because i suspect that actually, its at the heart of most things.

Sat 04-Jun-11 21:52:03

Oh Oh is a football a convex shape?!

<hopes I may have learnt something>

MoreBeta Sat 04-Jun-11 21:54:48

Right! I can't stand it anymore. I am off to Google - CONVEX HULL!

wednesday13 Sat 04-Jun-11 21:56:03

YABU

My DS1 is an unstoppable questioner and techno-head. You can't say anything without him picking you up on a word he doesn't understand, I was trying to explain "reverberate" on the way to swimming today. Convex hulls would have been right up his street I'm pretty sure we've done aerofoils.

cecinestpasunepipe Sat 04-Jun-11 21:56:33

How can something convex be 2-dimensional? Genuinely interested. Please get your DH to explain.

MoreBeta Sat 04-Jun-11 21:57:12

OK. I Googled - Convex Hull and I am non the wiser.

Sat 04-Jun-11 22:00:30

It sounds like you have a bright little boy there.

cecinestpasunepipe Sat 04-Jun-11 22:02:02

Duuuh??
I think I'll leave it.

wednesday13 Sat 04-Jun-11 22:09:34

Have I got this right? You hammer a load of nails into a table in a random pattern. You stretch an elastic band around the nails so it surrounds the group tightly. The shape of the band is a 2d convex hull. It is the smallest shape that contains all the points but it doesn't go in anywhere i.e. it is always convex (or straight line).

MoreBeta Sat 04-Jun-11 22:14:03

wednesday - you are a genius. Thank you.

I can go to sleep now without thinking about it.

Join the discussion

Registering is free, easy, and means you can join in the discussion, get discounts, win prizes and lots more.

Register now