M-ABC and BHK: movement and handwriting

In schooling, motor clumsiness and handwriting difficulties are too often wrongly described as laziness or lack of effort. The M-ABC (Movement Assessment Battery for Children) and BHK (Concise Assessment Scale for Children's Handwriting) provide an objective, scientifically normed measure of movement skills.

The M-ABC assesses three key motor components through eight timed tasks: manual dexterity, including threading beads, inserting pegs and tracing mazes; aiming and catching, including throwing and catching a beanbag or ball; and static and dynamic balance, including heel-to-toe walking and standing on one leg. It supports a formal diagnosis of Developmental Coordination Disorder (DCD), or dyspraxia.

The BHK asks the pupil to copy a standardised text for five minutes. The psychomotor therapist analyses two distinct scores: writing speed, the number of letters written per minute, and handwriting quality through thirteen precise criteria, including irregular letter size, tremor, collisions between letters, broken lines and tense bodily posture. It reveals disabling motor dysgraphia.

This approach precisely quantifies the gap from age-group norms. The findings establish the legitimacy of requests for school adjustments, including an extra third of the allotted time, photocopied lessons and reduced writing requirements, and guide the physical rehabilitation plan.

BHK and M-ABC findings provide decisive clinical evidence for official school adjustment requests, including classroom computer use and adapted examinations. Children finally feel their effort is recognised and are relieved of guilt about their clumsiness.