Efficiency means doing things in the best, fastest and easiest way possible. Imagine you want to color a picture of a flower, but you only have one crayon. It would take a long time to color the flower with just one crayon. But, if you had many crayons, you could color the flower faster and with all of the different colors you wanted. That would be more efficient!
In everyday life, efficiency means finding ways to do things so that you use the least amount of time, energy, and resources. For example, turning off the lights when you leave a room saves electricity, which is good for the environment and can lower your electricity bill. Or, when you’re cleaning your room, it's more efficient to pick up all the toys and put them away at once instead of going back and forth each time you find a toy.
Many people and organizations try to be more efficient because it can save them time, money, and resources. So, if you want to be more efficient, try to find ways to do things that use less time, effort, money, or resources. It's an important skill to have, even as a five-year-old!