Cut leaves out of brown construction paper. Glue paper towel tubes to wrapping paper tubes to create a trunk and branches. Glue the leaves to the tubes.
Crumple newspaper into balls and stuff the lunch bags with the newspaper. Staple the bags shut and crumple them into round shapes to create faux rocks.
Print pictures of ducks, frogs and other pond animals and ask children to decorate the room with them. Hang the pictures on the wall or use them to decorate a bulletin board.
Add a live element to your classroom pond theme by creating a mini-pond environment with an aquarium in which you place fish or make a terrarium using the glass aquarium container and place a frog or a turtle in the container. Have the students study the various types of small fish found in ponds and add a few of these fish to the aquarium, if possible. Otherwise, add some goldfish or guppies. Have the students take turns feeding the fish and older students can help with cleaning and maintaining the aquarium. For a terrarium environment, add a frog or turtle, both of which are found around ponds. Add grasses and plants similar to those found around local ponds. For a more up-close pond study unit, take a field trip with your students to a local pond and gather some grasses and plants for the classroom terrarium.