Bjoern's answer is a good one.  Another way we commonly do this is by preparing a 'base' history published with the datasets the students need to get started -- something like https://usegalaxy.org/u/mimi31k/h/chip-seq-example-1-raw-data.  Students then click a single button to import that history and start working with it.

To be clear, there is no actual duplication of data using either this or the data libraries approach.

On Fri Jan 30 2015 at 9:33:58 AM Björn Grüning <bjoern.gruening@gmail.com> wrote:
Hi Edgar,

this is indeed possible. Please have a look at Galaxy data libraries:

https://wiki.galaxyproject.org/Admin/DataLibraries/Libraries

Cheers,
Bjoern

Am 30.01.2015 um 15:30 schrieb Fernandez Edgar:
> Good morning Gents,
>
> I hope everyone is well.
>
> I was wondering if it's possible to share data on Galaxy without all the users downloading the data to their history.
> Let me explain, teachers will be sharing data with their students.
> And the students will need to work with that specific data.
> However, I would like them to be able to read that data without replicating it on their history.
> Is that possible?
>
> Cordialement / Regards,
>
> Edgar Fernandez
> System Administrator (Linux)
> Direction Générale des Technologies de l'Information et de la Communication
> *  Bur. : 1-514-343-6111 poste 16568
>
> Université de Montréal
> PAVILLON ROGER-GAUDRY, bureau X-218
>
>
>
>
> ___________________________________________________________
> Please keep all replies on the list by using "reply all"
> in your mail client.  To manage your subscriptions to this
> and other Galaxy lists, please use the interface at:
>   https://lists.galaxyproject.org/
>
> To search Galaxy mailing lists use the unified search at:
>   http://galaxyproject.org/search/mailinglists/
>
___________________________________________________________
Please keep all replies on the list by using "reply all"
in your mail client.  To manage your subscriptions to this
and other Galaxy lists, please use the interface at:
  https://lists.galaxyproject.org/

To search Galaxy mailing lists use the unified search at:
  http://galaxyproject.org/search/mailinglists/