This is an incorrect sentence. It needs a verb. It also needs to start with a capital letter.
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This is an incorrect sentence. It needs a verb.
It also needs to start with a capital letter.
You should fix those errors, and then think about adding a preposition.
Your sentence needs to be corrected, but concerning your question about indignant, it's usually indignant at or indignant about, less often indignant with.
How about if you combine the hints that Clive and I have given you and write the sentence again?
CJ
anonymousthe teacher indignant _____ my behavior.
If you are the same anon who has been posting questions like the above, I suggest that you begin exercising exercise courtesy and social etiquette in asking or acknowledging the answers and correcting comments. I am being polite and I believe all learner should be.