This book has helped my daughter make connections. For example it will show you one picture and then three others on the right, ask which one is smaller. I like that the photos are actually to size, she needs to think about it more. It's often VERY obvious. Also, she should remember the size of the first image when comparing. It's worth a few bucks anyway. It gets through quicker than the others we've used and seems to get more out of each page.