Suppose you want your students to see each others' solutions to discuss methods and strategies with the whole class. In that case, you can project your computer screen on a bigger screen at the front of the classroom and show your students by going to the Heatmap and looking at the different solutions.
If there are a few different interesting solutions you want the class to take a closer look at, you can pin the solutions. You can do this by clicking the pin symbol, which can be found on every solution. You can then see the pinned solutions by clicking the pin symbol, which can be found at the top of the page. You can also make the solutions anonymous and hide the answer by clicking the hat and glasses at the top right.
If you want to anonymize the solutions before entering the assignment, click the hat and glasses here.