Yup. Second grade, Mrs. Fischer's class.
They broke us into four groups and corralled us group-by-group into a room. They put a book in front of you and asked you to start reading aloud in front of everyone. The kids that struggled were cut off before they got embarrassed. Of the kids that could read it, they let them keep going for a minute or so. If it was obvious you could read smoothly and didn't get hung up, they pulled you out of the regular class and met as a small group for English class for the rest of elementary school.