It's really hard just to watch someone walk to decide what's wrong with them. A better way is to do what's called Three Dimensional Gait Analysis, and that's where the child comes into one of our labs. Here, we put markers on their face, hands, and legs. We have a computer and a bunch of cameras all around the room. And then we're able to break down the gait into three dimensions.
Every educator needs to make a decision about technology they need to put in place. They're not sure if they should put Option A in place or Option B in place. This can be particularly difficult in the world of disabilities because there might not always be a perfect answer. Teachers can look to this solution, using the least dangerous assumption to make good decisions about what technology might be best.
When you don't have enough evidence about a student's performance, assume they can do whatever you're asking them to do.