It is important to use a sharp knife when chopping vegetables so parents should do this or you should watch your child very closely if they are having a go.  Make sure you’re your fingers are kept well away from the blade.  You can do this by tucking your fingers underneath your knuckles.  Use a chopping board to protect your work surfaces and prevent the food item from slipping.  Keep the tip of the knife on the board and use a rocking motion back and forth as you cut the food.