STEM Walls comprise of moulded plastic square tiles populated with a matrix of precise holes. These need to be screw fitted to an indoor wall. If the wall is flat and smooth holes can be drilled directly into the wall surface and the tiles fitted onto them. Using these moulded plastic modules, it is possible to completely cover your entire classroom wall or just a designated smaller part of it. All modules can be connected to any other modules of any size in 4 directions. With these modelar-sized panels, we can easily cover large wall surfaces by using the standard 800W x 1200L or  800W x 800L. Smaller modules are provided to cover up voids that are too small for the standard 800W. Smaller modules can also help covering up wall surfaces with windows, doors or other fixtures.