Did children go to school in the middle ages?

Generally, no. Very few did and books were hard to come by. The printing press wasn't invented until 1448 so books were not something people to go out and buy. The church told The Bible through stories, plays, and the stain glass Windows in the church walls. In court cases people verbally told the judge what was the problem ( that is why we have testimony in cases today), and stories like Robin Hood were oral poems so people could remember the tale and retell it over and over. Some nobility could read and the priests did read as well as wrote or copied books.