TITLE:
Natural Crayons, Natural Learning: An Art-Based Programme for Children with Autism
AUTHORS:
Itsariyaphon Chaikulap, Thairoj Phoungmanee, Tunyaluk Suphaphonthorn
KEYWORDS:
Natural Crayons, Art-Based Education, Autism, Creativity, Sensory Learning
JOURNAL NAME:
Open Journal of Social Sciences,
Vol.14 No.8,
August
11,
2026
ABSTRACT: Commercial crayons are sometimes made with pigments that are unsafe for children, and art materials used in special education rarely address this concern directly, despite children with autism often having heightened sensitivity to smell, texture, and other sensory properties of the materials placed in front of them. This study developed and evaluated a set of crayons made from three natural pigments—marigold, indigo, and lac—and used them in an art-based educational programme, delivered by special-education teachers rather than by a qualified art therapist, for children with autism. The work proceeded in three phases: five experts assessed the quality and the suitability of the crayons for use with children; ten children with autism (aged 7 - 12) took part in a six-week programme of art activities, assessed before and after with four behavioural rating scales; and three teachers and ten parents were interviewed about what they observed. Colour measurements confirmed that each pigment produced a distinct, reproducible hue, and blends extended the palette without losing distinguishability. After the programme, the children showed statistically significant gains in creativity, attention, fine-motor and eye-hand coordination, and positive behaviour, all with large effect sizes by conventional standards for this kind of test. Teachers and parents rated the programme very positively, particularly its effect on the children’s mood and behaviour. Because the crayons, the open-ended activities, repeated practice and teacher support were introduced together, the design cannot isolate the contribution of any single component, and no chemical contaminant or skin-safety testing was carried out. These findings are brought together in a five-part framework—the Natural Crayon Art Learning Model—describing how natural materials assessed as suitable for children, used in open-ended art activities, generate the kind of sensory experience that supports creative and behavioural growth in children with autism.