difficult child had been trialing Concerta this last week and Monday and Tuesday. Can a medication like this cause a learning block of some sort? The reason I ask is because when husband and I visited him on Tuesday, his Licensed Clinical Social Worker (LCSW) said that school was going well but that his teacher was concerned about math. He had mentioned that it was like T had never seen math equations before. This surprised us because he had been able to do math problems previously (he's was no where near advanced but on grade level). We visited with difficult child alone and we tested him a bit- what's 6 plus 1. He didn't know. We worded it different, "you're six years old and on your birthday you'll have had added another year how old are you going to be?" We took five stones and added three more- no idea. He seemed confused and was upset that he couldn't give the answers. He was not in the room when the Licensed Clinical Social Worker (LCSW) mentioned his troubles in school with math. T at times will pretend he doesn't know an answer but it didn't seem to us that was the case here. husband and I figured, well maybe he really does struggle in math and we just didn't realize it. I went and visited T yesterday and is now off the Concerta. I asked him how school was and he mentioned, "I worked on math today". He said his teacher asked him so many easy questions and that he got them all right both verbally and on his worksheets. I asked him what the questions were like and he said, "1 plus 5". I said what is the answer and he said with even a pause- 6. So I gathered some stones again and asked him some different questions with them and he easily answered all of them without any trouble. Is it possible the medication has something to do with his block on Tuesday or should I venture a guess that he was playing husband and I?