Teaching students with intellectual and developmental disabilities to calculate cost after discounts via schematic diagrams
Section snippets
What this paper adds
This paper adds to the limited literature examining life skills mathematics problem solving for students with IDD. It also adds to the literature base regarding schema instruction for students with IDD as well as research that examines mathematics interventions that target all of the learning stages for students with IDD.
Participants
Participants were three middle school students with disabilities. The three students were all educated in the same self-contained special education mathematics class taught by the same special education teacher. The special education teacher’s classroom was denoted as one for students with mild intellectual disability, consistent with her teaching endorsement. In the state the study occurred, special education teacher licenses and programs were disability specific (such as mild intellectual
Results
A functional relation was found between the dependent variable of accuracy in solving problems involving finding the cost of an item with a discount and the intervention package of a schematic diagram and the SLP (see Fig. 3 and Table 2). The students were, in general, able to acquire the skill of solving the problems with the schema as well as maintain but not all three were able to generalize to solving the problems without use of the schema.
Discussion
This study explored the use of a schematic diagram to support the acquisition, fluency, maintenance, and generalization of life skills mathematics for secondary students with IDD. Researchers examined the intervention package of a schematic diagram and the SLP on the accuracy and independence of three middle school students with IDD as they found the cost of item after a discount was applied. For all three students a functional relation was found between the intervention package and accuracy.
CRediT authorship contribution statement
Emily C. Bouck: Conceptualization, Project administration, Supervision, Methodology, Data curation, Resources, Visualization, Writing - original draft. Holly Long: Data curation, Resources, Writing - review & editing, Visualization.
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