assumption
An assumption is like when you see a closed box and you think there might be a toy inside because last time there was a toy in a similar box. You don’t really know what’s inside until you open it, but you guess based on what happened before. It’s like using your imagination to fill in the blanks when you don’t have all the answers.
Another way to think about an assumption is like when you see the sky getting dark and you think it might rain soon. You don’t see the rain yet, but you think it could happen because the sky looks like it did last time it rained. You’re using what you know from the past to make a guess about the future.
A third way to understand an assumption is like when you hear the ice cream truck music and you think it will stop near your house. You don’t know for sure, but you’re hoping and guessing because it often stops there. Assumptions help us make guesses, but sometimes they can be wrong, so it’s important to check and see what’s really happening.