Anyway, here are some resources for kids for studying imbuhan akhiran.
Here's a video for Imbuhan Akhiran -an
Here's a power point presentation to explain Imbuhan Akhiran -an, -kan dan -i.
I found the video cute but not extremely helpful while the powerpoint slide is easier to understand.
To sum it up, a word is changed into a verb (kata nama terbitan) when combined with the imbuhan akhiran -an whereas a word is changed into a noun (kata kerja terbitan) when combined with the imbuhan akhiran -kan dan -i.
Hope that helps some primary kids parents.