Can we help Teddy?

This is the link for Can we help Teddy?:

https://drive.google.com/open?id=0B4YLBJzOULYRQWg5aEhKYTVGX2c

This is the link for Procedure of this task in class:

https://drive.google.com/openid=0B4YLBJzOULYReWFpajdrSVY5bTdkWG5xYjZVV2NsbWNldVp3