Counting Method / June 6, 2018 / Lilyana Geary
Like the natural numbers, Z is closed under the operations of addition and multiplication, that is, the sum and product of any two integers is an integer. However, with the inclusion of the negative natural numbers, and, importantly, 0, Z (unlike the natural numbers) is also closed under subtraction. The integers form a unital ring which is the most basic one, in the following sense: for any unital ring, there is a unique ring homomorphism from the integers into this ring. This universal property, namely to be an initial object in the category of rings, characterizes the ring Z.
Snacks are other properties that attract the child's attention. Count aloud the pieces of snacks before giving them. Ask them to count each piece they put into their mouth and continuously, encourage them for their good work. The child loves to eat the snack and therefore, makes the counting with fun and pleasure.