Spatial Reasoning
Spatial Reasoning is thinking about shapes, sizes, and how objects fit together in space.
Think of it this way
A set of boxes sits on a kitchen shelf. Each box is a different size, and you need to fit them all into one large drawer. You rotate and slide each box, testing which order leaves no gaps. That mental work — picturing how each shape fills the space — is spatial reasoning.
Explaining spatial reasoning by grade level
Think about building with blocks. You look at a block and guess where it fits. You turn it and try again. Your brain makes a picture of how the pieces go. That is spatial reasoning. It helps you solve puzzles and build things.