Probably Pokemon, followed by Digimon back in Grade 4-6 sometime.  The next anime I watched would've been in Japanese class on last day of term of Year 8 - they showed Kiki's Delivery Service (childish movie).  In Year 9, they showed Spirited Away, and Year 10, wee watched My Neighbour Totoro.
I didn't really get into anime - mainly cause those kiddie shows wee're so attractive.  But had a friend who was crazy about it, and he gave me Love Hina, which I only watched a year later.  Found it entertaining enough to see if there were anything else similar...