The Green Desk

Tree Cookies for Play and Learning

What are some ways to improve an outdoor learning environment without breaking the bank?

Tree cookies are a simple, affordable, and effective way to improve an outdoor learning environment. They afford a variety of play activities and either fixed in place to serve as “stepping stones” or other types of play surfaces or as “loose parts.”

Sliced segments of logs (3″-6″ thick) = instant stepping “stones”, informal paths, bug habitats (look underneath!), and natural building materials.


Look around the community for free logs to slice up into tree cookies. Hardwoods are preferred to soft woods and recently cut wood is preferred dead wood. Red cedar is ideal because it is resistant to decay and the cross-section of the trunks provides cookies with fun shapes.

Fixed Tree Cookies

Fixed tree cookies generally have a larger diameter and can afford sitting, jumping, and balancing. Tree cookies that are fixed in the ground linearly create a path. Tree cookies are great stop-gaps if stepping stones are not initially affordable. They will need replacing within two to five years and are not suitable for a permanent path solution. If creating a path, the tree cookies should be a minimum of 4 inches thick. Any rough edges on the top side of the tree cookies should be sanded. To make them last longer, the bottom side of fixed tree cookies could be slathered with polyurethane or oil-based paint to create a barrier against water being absorbed from the soil. Larger logs will require a chain saw with a sharp blade for a clean cut.

Loose Tree Cookies

Loose tree cookies have a variety of potential affordances, including dramatic play, stacking, sorting and hauling. Loose tree cookies can be 1″ – 6″ thick and have a diameter of 3″ – 12″. A radial arm saw or band saw can be used to cut smaller diameter tree cookies. Both cut sides of loose tree cookies should be sanded smooth.