I am studying my pronouns right now for sixth grade, while i was looking over the words,i saw that the word THAT is a pronoun, how can it be a pronoun?

"That" can be a pronoun when it stands for a noun.

Examples:

That is a great idea!

I don't understand that.

It's a pronoun when it's used in place of "which."

Thank you both so much, now i simply understand.

You're welcome. :-)

It is because a pronoun describes a noun.

Great job studying pronouns in sixth grade! It's always exciting to discover new aspects of grammar. Now, let's take a closer look at the word "that" and why it can be considered a pronoun.

The word "that" is a pronoun when it is used as a demonstrative pronoun. Demonstrative pronouns, such as "this," "that," "these," and "those," are used to point out or identify a specific person, place, thing, or idea. "That" is typically used to refer to something that is further away, either in distance or in time, from both the speaker and the listener.

For example:
1. "That is my book." (Here, "that" is referring to a book that is farther away from the speaker and the listener.)
2. "I don't like that." (In this case, "that" is being used to refer to something mentioned earlier, without repeating the noun.)

To understand whether "that" is being used as a pronoun or another part of speech, it's helpful to determine its function in the sentence. If it is used to replace a noun or to point out something without mentioning the noun explicitly, then it is acting as a pronoun.

Remember, grammar can sometimes be a bit tricky, so it's important to keep practicing and looking for examples in your studies.