Great “Flag Day” Resource June 14, 2013 by Larry Ferlazzo | 0 comments One Country! One Language! One Flag! is a great Flag Day (it’s today) learning activity by Bill Bigelow at The Zinn Education Project. I doubt that you’ll find any better lesson out there… I’m adding it to The Best Sites For Learning About Flag Day. Share this:TwitterFacebookGooglePinterestLinkedInMoreDiggRedditStumbleUponTumblrPocket Related Author: Larry Ferlazzo I'm a high school teacher in Sacramento, CA.