Watch Part 4: http://bit.ly/2cwOj19 Dorothy learns how the Scarecrow was made and why he wants to meet the Wizard of Emerald City—because he needs a brain! They continue down the Yellow Brick Road, and come across the Tin Man! Subscribe to Cool School's Channel: http://bit.ly/18enloo Like Cool School on Facebook: http://on.fb.me/1EFNxXE Follow Cool School on Twitter: http://bit.ly/1EUu2fI Follow Cool School on Instagram: http://bit.ly/1GIWGxU Follow Cool School on Pinterest: http://bit.ly/1