Here's an activity I did with a fourth grade bilingual group. They were studying the plurals ending in -ies and -ves. I pre-made the trunks and the leaves just to save time but you can have them create everything. They were each given black paper, two trunks and 10 leaves. They were then instructed to look in their books for words which made their plural using one of these forms. We had studied these plurals the previous class. They were supposed to write the words on the leaves and then glue them to the branches. They worked together and compared their words to make sure they were right.
Easy ESL/EFL paper activities https://www.youtube.com/user/Dedete36