Builders are like special puzzle makers! They know what to do by following a plan, just like using a treasure map!
First, they start with something called blueprints. These are drawings that show how the building will look, just like a picture in a storybook. The blueprints tell them where to put walls, windows, and doors.
Next, builders use their tools, which are like their magic wands. They have hammers, saws, and all kinds of other tools that help them build things. Each tool helps them do a special job!
Then, builders work together in a team. Just like when you play with your friends, everyone has a job. Some builders put up walls, while others put on roofs. They talk to each other to make sure everything is going just right!
Before they start building, they also check to see if they have everything they need. It's like making sure you have all your crayons before starting a picture.
Finally, as they build, they always look back at the blueprints to make sure they are doing it the right way, just like following a recipe when you bake cookies!
So, builders know what to do by having a plan, using tools, working together, checking their supplies, and always looking at their blueprint!