One for the teachers out there (or just anyone who loves a good biology poster). Complete the short survey and have a poster sent out to you.
No detail of the exact size or type, however going by one excellent poster here, it states This poster is designed to be printed at a maximum size of 29.5" x 23.5". This may be a clue? The other posters have similar maximum dimensions. Also, this page (showing the link to the survey) states it is a "classroom" poster. So it should be a decent size.
HHMI’s BioInteractive is an award winning website for educators, especially those that specialise in science.
OP, Kindly shorten title & add "Free Resources for Science Educ" [in a clear, abbreviated version] to title.
HHMI seem to have Interactive videos (cf: www.BioInteractive.org, which gets you back to HHMI.org)
Videos seem to be on HHMI's YouTube channel, here: http://bit.ly/BI_youtube
(Many short videos, some around 30 min's in length)
Two freebies for the price of one… ;-)
PS Educators &/or Home Schoolers may find the latter useful.