Horror, of course. Can I explain everything to him well? What if he doesn't understand it anyway, what if he doesn't pass the comparative tests and can't pass to the sixth grade because of me, and what if I screw it all up and explain something completely wrong to him? What if I give him a lot of information? What if I give him little information?
What if he doesn't pass the comparative tests and can't progress to the sixth grade because of me?