Classroom Activity using QR Codes

Hello!  Below I have attached my Underground Railroad Power Point along with the QR Codes used in my Power Point for my classroom activity.
I have chose to create an activity on the Underground Railroad.  In a class that I am taking, I am creating a 10 day unit on the Underground Railroad for 4th grade.  In my Power Point, I have 10 slides of QR Codes that students can use to learn about the Underground Railroad.  The QR Codes link to websites that show videos, have activities for the students, and fun facts and reading on the important people, places, and objects that took place in the Underground Railroad.  I hope you enjoy!

https://drive.google.com/file/d/0ByMebUFJBfWqd1ZFT182MDBlMWs/view?usp=sharing