The main objective of this study is to determine the benefit of the Chalaxie pedagogical evaluation tool in the management of overweight or obese children with intellectual disability.

Chalaxie is a software developped as a pedagogical evaluation tool. It is used in the therapeutic education of overweight and obese children and allow the clinican to explore several skills of the child, such as self-esteem.

Secondary objectives

1. To assess the feasibility of the Chalaxie tool use during a medical visit;
2. To assess the relevance of the Chalaxie tool for the pediatrician;
3. To describe the characteristics of the patients followed at the "Réseau ODE";
4. To evaluate patient self-esteem.

Conduct of research After receiving written consent from the study participant and parental authority, the patients will have two visits with the pediatrician during which they will use the Chalaxie pedagogical evaluation tool. At the first visit, they will use the self-esteem assessment module. At the second visit (i.e. final visit), which should take place between 3 weeks and 2 months after the first visit, they will use a module of their choice.

Inclusion Criteria:

• Minor patient of 11 years of age or older
• Overweight or obese patient respectively defined as a BMI ≥ IOTF 25 and ≥ IOTF 30
• Mild intellectual disability defined as intelligence quotient (IQ) ≥ 55 and <70 or (if IQ unknown) patient in a special education institution (ULIS, IM-PRO)
• Affiliated or beneficiary of a social security scheme
• Written consent of the patient and one of the parental authority holder

Exclusion Criteria:

• Patient with a severe autistic disorder
• Patient who already used the Chalaxie tool during his/her follow-up
• Difficulties in understanding the instructions for using the software and/or difficulties in using a computer