Today, we going to have a practical addition and subtraction lesson. Before the lesson starts it would be use for the children to have some objects for the children to count. I have just used some toys from my sons bedroom. On some scrap paper, I have written the numbers 0 to 20, you could use the back of an old envelope or some paper that you may have. On some other paper, I have drawn the mathematical symbols + and -. You will also need a pencil and paper, to record your answers. Please watch my video below for today's activities.