The Pluto-based homework assignments on https://computationalthinking.mit.edu/Fall20/ https://computationalthinking.mit.edu/Fall20/ are really nice. They have

The Pluto-based homework assignments on https://computationalthinking.mit.edu/Fall20/ https://computationalthinking.mit.edu/Fall20/ are really nice. They have checks, hints, and interactive plots that update based on your answers. It's really satisfying to get this immediate feedback. The content is great, too, which helps.