Is it possible...

... to teach agility at home??

Yes...you can buy lots of stuff to help now.
Dogs Today magazine ran a series of articles based on this a while ago. If you got in touch with them I bet you could buy the set.(Of articles)

thanks thats very help full. I really want to start agility with my lovely little lakeland terrier x jack russel as she loves jumping over things in the garden, I just cant afford classes at the moment so would love to teach it at home. How could you get involved in competions though?

i would say, on the whole, no. and to buy equipment is way more expensive than classes- they are only around 5 pound per lesson.
imo you have to be experienced agility handler to teach your own dog solely on your own. I have been training my dogs in agility for nearly 2 years. i now run 2 dogs and although i do bits of basic training at home such as weaves etc i wouldnt not go to training even if its every 2 weeks.
if you go on www.agilitynet.com and go onto the list of a-z clubs it gives a list and if you click on them it tells you how much they charge.
warning: once you start you wont be able to stop lol

but if you want to start 'specialist' basic training for agility let me know and i can give you tips on what things to train- even without any equipment!

To a certain extent, yes! And you can make your own stuff at low cost, just for fun of course, you wont win any medals from training in the back garden but it wouldn't hurt. As long as she is old enough of course.

ETA this link, I know the pics are no longer there but you get the idea!

http://www.dogsey.com/showthread.php?t=54521

As others have said - yes and no

If you are doing it just for fun between you and your dog just running round your garden and you make sure and keep them safe - then sure

But if you later want to compeate then you will soon find the limitations of your teaching

Really the dogs get the hang of the basics pretty quick, most of the classes are about showing us how to handle the dogs - thats the tricky bits

If you are thinking about compeating then you can afford to train - comps are far more expensive than classes
and you will soon get fed up if you havent got the support of a club behind you

Having said that - I did build some jumps and weaves in my garden before I found good classes - just garden cane and plumbing lagging - we had fun