Below are the four links that are on the assignment description pdf that you can view.
https://youtu.be/07mehbgE5jc?list=PLB8A5292FC68E2D77
https://youtu.be/Nq8-w2BAJkU?list=PLB8A5292FC68E2D77
https://youtu.be/AlRYrBFoQqA?list=PLB8A5292FC68E2D77
https://youtu.be/bA8GuloqV60?list=PLB8A5292FC68E2D77