Spiraling up

Spiral (noun) - a curve on a plane that winds around a fixed centre point at a continuously decreasing or increasing distance from the point. 

...add scissors....

Helix (noun) - a 3D curve that turns around an axis at a constant or varying distance while moving parallel to the axis. 

The spiral investigation cross pollinated our playdough centre, where a few girls were expanding their knowledge of clay building methods. By adding a coil spiraling up the sides, a taller, more stable shape is created. 

We'll try it tomorrow with the real clay.