Cognitivism is a way of understanding how people learn new things. People have a big brain called a "cognitivist" that helps them learn and remember information. The brain works like a computer, taking in information through the senses and storing it in the "memory" part of the brain.
When you learn something new, like how to ride a bike, your brain takes in information about balance, hand-eye coordination, pedaling, and more. It stores this information in your memory so that you can remember how to ride a bike next time you try it.
Cognitivism also says that people learn differently depending on their own experiences, background knowledge, and motivations. For example, you might be good at solving math problems but struggle with reading comprehension.
Teachers who use cognitivism as a learning theory create lessons and activities that are designed to help their students understand and remember information. They might use visuals, hands-on activities, or discussion groups to help their students learn. By understanding how the brain works, they can create lessons that are more effective and help more students learn new things.