 Designed by teachers and early childhood learning experts, ABCMouse seamlessly aligns with what your child is already learning in school. And with over 7,000 learning activities and more than 650 lessons, it's the most comprehensive early learning site on earth. I have been teaching for 13 years and I've never seen a program like ABCMouse. It encompasses science, math, reading, social studies. It's just endless what they can learn on ABCMouse. I've always had to use 20 websites.