Two-year-olds are learning to use the large muscles in their arms and are able to carry out activities such as scrubbing and washing vegetables and fruits or carrying unbreakable items to the table.
Three-year-olds are learning to: use their hands and should be able to pour liquids into batter, to mix batter or other dry and wet ingredients together, to shake a drink in a closed container. To spread butters or spreads, to knead dough, to wash vegetables and fruit, to serve foods or put things in the trash after cooking.
Four and five-year-olds are learning to control fine motor muscles in their fingers and should be able to do the following activities: Squeeze oranges, lemons, and limes, peel some fruits and vegetables, to scrub or wash fruits and vegetables, to cut some fruits and vegetables with a child-safe utensil, to measure dry ingredients, to mix ingredients.
The most important thing to remember is to have fun with the children as they have those learning experiences and learn about the joy of cooking.