Spanglish

This afternoon Sam was playing with his blocks and proudly showed me a pattern he created in his block tower.
"Look, Mommy, my pattern! Blue, Gleen, Blue, Gleen."
"Great pattern! But are you saying 'Gleen?' You know how to pronounce 'Green.'"
"No, Mom, that's how they say it at my school."
Although my main motivation for sending Samuel to school is so that he learns some Spanish, his school prides itself in teaching English to their students. Unfortunately for us, it has caused a little confusion at home because the English is taught with a very pronounced accent. One day a few weeks ago, we had a big discussion that "Weensdayy" is an English word, NOT a Spanish word. He gets a little tripped up, I think, because he distinguishes the languages according to the pronunciation of the words...so when you pronounce English words with Spanish accentuation, he gets a little confused.
But what do I know, that's just a guess. He also told me recently that the teacher wants them to say: "May I go to the bathroom?" when they have to go so that they can practice their French.