[lloydatkinson]

Do you have a link to the Coursera course?

[i_don_t_know]

I believe Mark is referring to this series of three classes:

https://www.coursera.org/learn/basic-modeling

https://www.coursera.org/learn/advanced-modeling

https://www.coursera.org/learn/solving-algorithms-discrete-o...

They are indeed excellent and highly enjoyable.