Grammar Correct

Before correct :
a brand new experience !
Last wednesday ,  With my teather and classmates ,I watched a brand new dance at Four Sensons Centre.This was my first class of  LINC 4-5, so everything was fresh for me , including my classmates. when  I arrived  Four Sensons Centre, I saw many peoples in the front of entrance, but I don't recognize anyone.  Fortunately,when I decided to go home, I saw my teacher. The dance started at 12:00 PM. It lasted for one hours. the dancers were very  professional ,but honestly I have no ideal of it. Otherwise, this is a nice day for me ,because I meet  many new friends!

After correct:
A Brand New Experience
Last Wednesday with my teacher and classmates, we watched a brand new dance at Four Seasons Center. This was my first class in LINC 4-5, so everything was new to me , including my classmates. When I arrived at Four Seasons Center, I saw many people in the front of entrance, but I didn't recognize anyone. Fortunately, when I decided to go home, I saw my teacher. The dance started at 12:00 p.m.. It lasted for one hour, The dancers were very  professional, but honestly, I had no ideal of it. Otherwise, this was a nice day for me because I met many new friends!

After Correction:

A Brand New Experience

Last Wednesday, I watched a brand new dance at Four Seasons Centre with my teacher and classmates. This was my first class in LINC 4-5, so everything was new to me, including my classmates. When I arrived at Four Seasons Centre, I saw many people in front of the entrance, but I didn't recognize anyone. Fortunately, when I decided to go home, I saw my teacher. The dance started at 12:00 p.m. It lasted for one hour. The dancers were very  professional, but honestly, I couldn't appreciate their performance. Otherwise, this was a nice day for me because I met many new friends!