Что за бред?! Учительница занижает оценки ребенку с особенностями, что делать?

Ranting!!

To tell my son that has a known learning disability and an IEP since kindergarten to "Do Better" im heated. this isn't even his original teacher this is some dumb stand in substitute that told me ' 'since im new i dont know the students that well'' shes about to know mine the best. i am so pissed if i didnt have a flight to California tomorrow i would be in that school in person. this teacher has me signing a test that she scores 16/28 idk what system shes using its 20 questions he got 2 wrong and didnt fill in 3 🤔 . in the email i wrote to the dean and my sons iep case manager i told them that signature is not going to have a not so nice note from me. this kid is in 6th grade and never had i had a teacher made him feel less than becsause he struggles academically, now hes saying he doesnt like science and doesnt even want to go to school. if my child starts to regress because of this woman im fighting someone.