A proper noun is always written with a capital letter, not like those common nouns!
Here is a lesson for proper nouns-
Write on note cards everyone’s first name in your family or classroom. We always included the pet’s first name too!
Say something like this, “We are using a capital letter at the beginning of everyone’s name because it is a proper noun.”
Let the children take turns taking a card and giving it to the person it matches.
Make a noun card to put on top of the pile when you are finished with the lesson. Put the proper nounds in a box with the noun card on top.
Here are some other activities-