DURING LNDG ROLLOUT; STUDENT AND INSTRUCTOR OF C152 TAKE EVASIVE ACTION OFF THE SIDE OF THE RWY AT 1S0 TO AVOID OPPOSITE DIRECTION C310 DEP. POOR CTAF DISCIPLINE BY DEPARTING PLT IS CITED.

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MY STUDENT AND I WERE ON OUR LAST LNDG OF A 1.2 HR FLT OF WHICH THE LAST 30 MINS WERE SPENT DOING MULTIPLE LNDGS ON RWY 34 AT 1S0. MY STUDENT CONTINUED HIS NORMAL PATTERN CALLING OUT DOWNWIND; BASE; AND FINAL APCH LEG AND TOUCHED DOWN SAFELY ON RWY 34. AS WE STARTED OUR ROLLOUT I HEAR 'LOOK AT THAT' AND I SEE A LARGE TWIN COMING DOWN THE RWY IN THE OPPOSITE DIRECTION. WE INSTANTLY TURNED OFF THE RWY INTO THE GRASS. I MADE 3 RADIO CALLS EXPLAINING THAT WE HAVE BEEN WORKING THE PATTERN FOR THE LAST 3O MINS AND ARE YOU ON FREQ? I FINALLY GOT RESPONSE FROM AN APOLOGETIC PLT EXPLAINING THAT HE DID NOT HEAR US ON THE RADIO. I EXPLAINED THAT THE WINDS ARE FAVORING RWY 34. THE OTHER PLT SAID THAT HE WAS MAKING RADIO CALLS AS WELL BUT THIS WAS THE FIRST TIME THAT I OR MY STUDENT HAD HEARD HIS VOICE. THE WINDS WERE BLOWING FROM THE N AT LEAST 8 KTS. FROM THERE WE PROCEEDED BACK TO PARKING AND BEFORE WE HAD COMPLETED OUR TIE-DOWN OF THE AIRPLANE THERE WERE TWO OTHER AIRPLANES IN THE PATTERN FOR THE RWY THAT WE WERE USING; RWY 34. WHAT I BELIEVE LED UP TO THE EVENT WAS THAT THE OTHER ACFT BELIEVED HE WAS THE ONLY ONE IN THE PATTERN AND HE DID NOT MAKE ANY RADIO CALLS OR EVEN LISTEN FOR THE OTHER TFC. THE SOLUTION WOULD BE THAT MORE ATTN NEEDS TO BE MADE TO THE RADIO BY THE OTHER PLT AND AT LEAST LISTEN TO TFC WHEN ENTERING THE PATTERN. SUPPLEMENTAL INFO FROM ACN 629939: TAKING OFF OR LNDG; HE WAS USING THE WRONG RWY AND SHOULD HAVE BEEN LISTENING ON CTAF 122.7 RADIO TO ESTABLISH WHICH RWY TO USE.