Remember the graph paper you used at school, the kind that’s covered with tiny squares? It’s the perfect illustration of what mathematicians call a “periodic tiling of space”, with shapes covering an ...

Encourage fourth graders to engage in rich mathematical tasks with these specific teacher moves that integrate several Standards for Mathematical Practice in meaningful ways. Journal Information ...

Remember the graph paper you used at school, the kind that’s covered with tiny squares? It’s the perfect illustration of what mathematicians call a “periodic tiling of space”, with shapes covering an ...