Calculus of constructions is a way of using math to build things and solve problems. It helps people figure out the best and most efficient ways to build things and figure out solutions to problems. It does this by breaking down the problem or task into smaller pieces and then figuring out which pieces need to come together to finish the task. In other words, it’s like a really big jigsaw puzzle – you break it down into pieces that are easier to work with, and then put them back together to make the whole thing.