INCORRECT TFC PATTERN INCIDENT AT NON CTLED ARPT.

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THE TWIN AZTEC ANNOUNCED 3 MI NE INBOUND; L TFC RWY 17 MKY. I DID NOT SEE HIM; SO I ANNOUNCED ACFT X L XWIND RWY 17 TOUCH-AND-GO ON DOWNWIND. I ASKED THE AZTEC HIS POS. HE SAID HE HAD ME IN SIGHT; THAT HE WAS BEHIND ME. AT THIS TIME; I CALLED L BASE RWY 17; TOUCH-AND-GO AT MKY. I SAW HIM ON L DOWNWIND; AND I CALLED FINAL RWY 17 TOUCH-AND-GO. I KNOW HE EXTENDED HIS DOWNWIND; BECAUSE WE WERE SLOWER THAN HIM. DID NOT HAVE ANY MORE COM. I LANDED WITH MY STUDENT. ON GND ROLL; I WAS JUST READY TO BRING IN THE PWR WHEN I LOOKED AT MY 12-2 O'CLOCK POS AND HEARD THE AZTEC TURNING FINAL TO RWY 17. HE TURNED L FINAL RWY 35. I CALLED AND SAID 'AZTEC IN TURN IS ON RWY 35; NOT RWY 17. SIR WHAT ARE YOUR INTENTIONS?' AT THIS POINT; I WAS READY TO TAXI IN TO THE GRASS AND OFF THE RWY. HE SAID 'O; MY GOD!' I SAID 'YOU NEED TO GO AROUND AND SET UP L TFC FOR RWY 17.' HE SAID 'I AM SORRY.' POOR PLANNING ON THE PLT'S PART OR JUST BEING DISTR OR NOT KNOWING THE ARPT ENVIRONMENT. THE TFC FOR RWY 35 IS R NOT L. PAY MORE ATTN ON FLT PLANNING AND NOT GET DISTR.