http://oralproficiency.coerll.utexas.edu/spanish/
There are great impromptu topics on there but those are not images.
This next one
http://images.library.pitt.edu/v/visuals/
has visuals for foreign language instruction that may be better for practicing for the picture impromptus. The only thing is they are all in black and white.
This site https://geekyteacher.wordpress.com/2010/09/27/an-image-to-improve-impromptu-speaking-skills/
Has 2 links in it with color images.
Sites with excellent royalty free images:
http://www.freedigitalphotos.net/
http://www.freeimages.co.uk/
I think the best link with the most resources at it is the geeky teacher link. From that one they can get topics, images etc.
There are great impromptu topics on there but those are not images.
This next one
http://images.library.pitt.edu/v/visuals/
has visuals for foreign language instruction that may be better for practicing for the picture impromptus. The only thing is they are all in black and white.
This site https://geekyteacher.wordpress.com/2010/09/27/an-image-to-improve-impromptu-speaking-skills/
Has 2 links in it with color images.
Sites with excellent royalty free images:
http://www.freedigitalphotos.net/
http://www.freeimages.co.uk/
I think the best link with the most resources at it is the geeky teacher link. From that one they can get topics, images etc.