Judy Woodruff:

Thanksgiving is usually thought, of course, as a feel-good, quintessential U.S. holiday.

But many argue the traditional narrative perpetuates myths, as well as being disrespectful to Native Americans, because it often leaves out the context of relations between them and the early immigrants, how the settlers brought diseases, for example, that decimated Native tribes, or information about the massacres of Natives that followed.

Now there's a growing movement to help history teachers unlearn what they themselves were taught. But not everyone agrees about what should be taught to students today.

Special correspondent Kavitha Cardoza, with our partner Education Week, has this report.

It's for our weekly education segment, Making the Grade.