This learning aid helps you understand the four-dimensional changes that characterize a developing embryo, as it transforms with complex three-dimensional changes over time, the fourth dimension. It gives instructions on how to fold your own complex embryo from colored paper.
This material is copyrighted, but copies may be used freely in classrooms or in other instruction.
The site cannot yet be downloaded, but a new downloadable version is in the works. It will print.
The material may not be published or sold.