Kindergarten through eighth grade was extremely difficult for me because my progress in reading, writing, and mathematics was excruciatingly slow. I would never read out loud in class, even if the teachers threatened to give me failing grades. The joke was that I only carried schoolbooks to ballast my lanky body against the strong winds of Montana. Eventually, I managed to graduate from high school, but just barely, having received Ds in all required classes, including English, in which my grade was a D minus, minus, minus. The teacher told me that this was essentially an F, but that he never wanted to see me again.
Fact: Independent, scientific, replicated research on reading development shows just the opposite. It shows that if a child is struggling with reading, writing, and spelling in mid-first grade, that child has better than 90% odds of still struggling with those skills in eighth grade and on into adulthood if someone doesn't step in and do something.