Kultura is a big word that means all the things that make up a group of people's way of life. When we say "way of life," we mean the things that they do every day, like the way they talk, the clothes they wear, the food they eat, the music they listen to, the games they play, and the stories they tell.
So if we go to a foreign country, we might notice that the people there have different kultura than we are used to. For example, in some parts of the world, people eat different foods than we do at home. Instead of hamburgers and pizza, they might eat noodles or rice dishes. Another example is language, where people might speak very differently from our own language, or even have their own words that we don't understand.
Kultura is important because it helps a group of people keep their traditions alive and pass them on to future generations. It makes them unique and gives them pride in their heritage. So, when we learn about kultura, we're learning about the wonderful diversity of the world around us.