In order to change the meaning of the word teach from "to give instruction" to "to give instruction with" you would add the prefix .

teaching

Teaching does not have a prefix.

is it teacher

the answer is co.

In order to change the meaning of the word "teach" from "to give instruction" to "to give instruction with," you would add the prefix "co-".

To verify this, you can refer to a reliable English dictionary or use online resources such as Merriam-Webster, Oxford English Dictionary, or Cambridge Dictionary. These resources often provide definitions, variations, and derivatives of words, including the addition of prefixes such as "co-". By searching for the word "teach" with the prefix "co-", you can find examples of the word "co-teach" which means "to give instruction with."

It's always useful to consult reputable sources to ensure accuracy and detailed explanations.