My dd is nearly 7. Despite seeming to be okay at maths she can't seem to work out the time e.g. If it's 8:50 and I ask her how long is it till 9:00? She can't work it out. She knows there are 60 mins in an hour and 30 mins in half an hour. Is this normal or should I be trying harder to teach her? For background information she has mild ADHD/Sensory processing Disorder (still being assessed) and is dyslexic.