Catalog Β· MIT OCW 18.S191 Introduction to Computational Thinking (Spring 2021) Lecture 21 of 25 How to collaborate on software | MIT Computational Thinking Spring 2021 | Lecture 21 β Previous A first climate model | MIT Computational Thinking Spring 2021 | Lecture 20 Next β Snowball Earth and hysteresis | MIT Computational Thinking Spring 2021 | Lecture 22 β Mark complete