It’s funny to watch how, in the chase for instant results, people degrade into complete morons. Here’s a popular public page teaching kids to sight-read:

By the way, not everyone will be able to perform it correctly anyway: the note durations aren’t indicated here, and that matters. If Beethoven had written down his works like this, they would have reached our day in an unrecognizable form.
Because it’s obviously easier to poke at little numbers with your finger like a moron than to spend a year studying at music school so you can read this:

And while we’re at it, here’s one about combining the pleasant with the useful: “How to get smarter lying on the couch?”

By the way, which one? :)