Step 1: Understand what a noun is. A noun is a word that names a person, place, thing, or idea.
Step 2: Learn about pronouns. A pronoun is a word that can replace a noun in a sentence.
Step 3: Examples of pronouns include 'he', 'she', 'it', 'they', and 'we'.
Step 4: When you use a pronoun, you do not need to repeat the noun. For example, instead of saying 'Maria is here. Maria is happy.', you can say 'Maria is here. She is happy.'
Step 5: Therefore, the part of speech that takes the place of a noun is called a pronoun.