I don't know if you can make kids "interested" in learning or not.
I think some are, some aren't.
There are methods to help learning become easier, and it is best to speak to the teachers about your concerns and ask if they know any methods - or keep looking online?
Find out what your child *wants* to do later on in life, and ways to connect their learning to that goal - That is my best advice.
as I grew up I loved animals, my dream job would have been marine biology as it encorporates everything I ever loved... Animals, Science and Water.
My favourite book as a child was a 900 page animal encyclopedia and I know the latin names of more than a few species =P
I got older, my interests changed, so did my passions for the things I was learning.
That strange moment in a 15 yr olds life that says "Eff Books, Give Me Mascara" Lol x