Whole language is a way of teaching reading and writing where we learn all of the parts of language together, instead of just one part at a time.
Imagine you're building a house with blocks. With whole language, you'd get all of the blocks together and figure out how they can fit together to make a whole house. With other ways of teaching language, you might just focus on one type of block, like the roofing blocks, and just learn about them without thinking about how they fit with other blocks.
With whole language, we learn about reading and writing by looking at whole words, sentences, and stories. We listen to how words sound and we look at the pictures in the story to help us understand what's happening. We might also talk about the story and write our own stories, using all of the language skills we know.
Overall, whole language is a way of learning about language that lets us see how all the different parts fit together like puzzle pieces, so we can understand language as a whole.