My first origami tessellations was a grid of pentagons. Now I’ve made a tessellation of triangles and squares to go with it. And mean that in a very specific way. This mesh is the dual of the other. If you draw a dot in the center of each cell of the pentagon grid and connect them all, you’d get this pattern. Five cells converge at each vertex. In the other pattern all the cells were the same shape, but either three or four cells converged at a vertex. I’ve never seen anyone fold this pattern before and the two of them make a nice set.