The Beery VMI Developmental Progression of Pre-Writing Strokes
Before a child can write the letter A or M, their neuromuscular system must learn to coordinate diagonal, horizontal, and vertical lines. According to the standard Beery-Buktenica Developmental Test of Visual-Motor Integration (Beery VMI), children master pre-writing forms in an invariant sequential order:
Vertical Line (|)
Top-to-bottom stroke control; foundation for l, t, b, d.
Horizontal Line (—)
Left-to-right visual tracking; crossbars for E, F, H, t.
Circle Form (○)
Rotational wrist control; essential for c, o, a, d, g, q.
Diagonal Slants (/ \)
Crossing body midline; foundation for A, K, M, N, V, W, X, Y, Z.