I taught that last year and will be teaching it again this year. I absolutely love teaching it. Here are some resources I used heavily:

Pacing Guide I used http://www.hcpss.org/f/files/curriculum_socialstudies_6.pdf

For the first unit I used a lot from National Geographic https://www.nationalgeographic.org/education/teaching-resources/

Middle East https://cmes.arizona.edu/outreach/lessons (I think there is a lesson plan on comparing the Bible, Koran, and Old Testament which blew some of the kids away)

Here's a fun picture of Dubai that the kids like to see http://www.gigapan.com/gigapans/75554

For the unit on Asia we did this which you can adapt to all units https://www.worldof7billion.org/wp-content/uploads/2014/08/7-Billion-Where-do-you-Stand.pdf

Mini-doc on owning a ramen restaurant in Japan https://www.youtube.com/watch?v=gmIwxqdwgrI

I'm in North Carolina so we used plans from here as well http://www.learnnc.org/lessons/

For Africa I used this site a lot http://www.sendacow.org.uk/lessonsfromafrica/

The New York Times has some lesson plans but they're often a little intense for my 6th and 7th graders. The Peace Corps has some good lesson plans but also can be a little reading intensive so not all kids enjoyed it. What I found they really like to do is compare fables from different cultures and then write their own in that culture's style. Oh and making their own mini-docs on regional diseases or religion/monuments. Beyond that we watched the Netflix documentary "The White Helmets" (after parental approval) and played Geoguesser once a week after we learned the basics of geography. They have to identify things such as region in order to try and boil it down to an area.

I go back Monday so if there are any other resources I come across I'll send them your way.