Pre-writing is not a curriculum. Pre-writing is a developmental process that involves the whole child.
Pre-writing is children playing outside to strengthen their neck, shoulders, torso, and core so they can be stable and support the mobility of the arm for handwriting.
Pre-writing is building with blocks so children can strengthen their elbows, wrists, hands, and their fine motor skills to eventually grasp a pencil.
Pre-writing is dramatic play to create and act out stories that become the content of writing.
Pre-writing is scribbling and open-ended drawing that encourage children to convey a message on paper.
As you can see, pre-writing is not a curriculum. Pre-writing is PLAY!