Skyhawk 172/Cutlass 172
Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 60; Flight Crew Total 3000; Flight Crew Type 1000
Communication Breakdown; Workload
Conflict NMAC
Flight Crew Executed Go Around / Missed Approach; Flight Crew Took Evasive Action
Human Factors
I was training in the traffic pattern with my student ZZZ airport (non-towered). I was on final approach about to reach the runway and another small plane rolled onto the runway and took off without self-announcing. They proceeded to take off and we had to take evasive action (immediate climb and offset to the side of the runway) to avoid a collision. I believe the other pilot simply didn't look before he took the runway (they were in a high wing aircraft - Cessna?). I asked on the CTAF what their intentions were; they said that they were departing straight out and flying up the coast at 300 feet. I continued to fly the right traffic pattern to continue closed traffic at Runway XX. As I entered the downwind another aircraft was flying the opposite direction of the traffic and was flying directly at me. I made another evasive maneuver (Climbing left turn) away from the opposing traffic and continued to fly the pattern for Runway XX. The opposing plane did a 180 left turn and entered the downwind in the correct direction next. There was also another aircraft in the pattern with a similar tail number. I'm not sure how there was such chaos and total confusion in this traffic pattern; but it was like 'Coyboy rules' with some pilots made some almost catastrophic errors. I believe that there were six aircraft in the pattern at one moment. There were two aircraft taking off and two; who entered the pattern after there were already four planes in the pattern. There were too many planes in the pattern at one time. I believe that I (we) did nothing wrong. We followed the rules and were going with the flow of the traffic pattern and operating safely.
C172 instructor reported traffic congestion and incorrect traffic procedures at a non-towered field resulted in an NMAC.