Thank goodness that the human races has been able to implement the concept of quantities into a linguistic form. Try to imagine a world without quantities. Expectedly so, but still of some interest, is the fact that most nouns are fixed to a singular quantity: 1. In order to convey the concept of more than one, that’s where languages manipulate the given noun to indicate more than one. In English “box” becomes “boxes”, and so on. There are exceptions to this basic rule, and the downloads below attempt to clarify them for both you and your students.
I felt compelled to include here the issue of countable and non-countable (uncountable) nouns. The latter refers to those words that denote neither singular or plural expression, but is simply used to indicate the subject or object. Examples of such would be: “air”, corn, and ”water”. It’s not that you can’t use the plural “s” to denote plurality, it’s just that we had inclined through historical habit to marginalize such pluralities to specific situations; like “the waters of Tippecanoe”. This will be of some interest and concern for your students as they attempt to navigate such waters. (Ha!)