The present study had the objective of relating the use of unstructured materials and the learning achievement in the area of mathematics in the children of the I.E.I Cuna Jardín Nº 548 mi mundo infantil Iquitos 2022, the relational methodology and non-experimental design. -Correlational, the sample was 152 5-year-old children, it was determined that 86.2% (n=131) children are at an optimal level in terms of the area of mathematics and 78.9% (n=120) always use unstructured materials, this demonstrates an ordinal relationship, when describing the level of use given to unstructured materials, 58.5% (n=135) constantly use these materials. When knowing the achievement in obtaining notion in the area of mathematics, 86.1% (n=131) of the children have achieved it. By associating both variables, the Pearson correlation test was applied, which yielded the result of rxy = 0.816 indicating the h...