I always walked my kids to school, it was a good time to talk and practice road safety, plus we would play games such as who can reach the next lamp post before a red car past us, (subtle way of getting to school on time without kids realising we were rushing). Also we used the time to spot and recognise numbers, ie on doors and car registration plates. We would talk about nature, different plants in gardens etc and I was amazed when working in a school that some kids of 11 y.o had never seen a spider's web covered with dew on an Autumn morning, I had to go and get a book out of the library to show them pictures of one!