Weight, height and body composition are important indicators for development. The tools used to measure these can be different for children with cerebral palsy.
I'm going to be talking about AAC and reading and some different things that you might not think about when you are doing those types of activities. When you're supporting reading for a nonverbal child, whether they use a high-tech system or a light-tech system, like a paperboard, you want to make sure that they have plenty of the opportunities to contribute to the experience. You want to be able to comment. You want to be able to talk about the people, the places, the things, and maybe the feelings that they have.
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.