Amnouysan, A.; Uthaipayuck, D.; Sinthunava, K. THE EFFECTS OF CREATIVE ART ACTIVITIES INTEGRATED WITH SIMULATED SITUATIONS IN MULTI-AGE CLASSROOMS ON THE BASIC MATHEMATICAL SKILLS OF YOUNG CHILDREN. WAT PHRA KAEW SCHOOL, CHAI NAT PROVINCE. Education MCU 2026, 13, 208-220.