3D Printed Educational Resources for Studying Percentages by People with Visual Impairments

Files for 3D printing of models for studying percentages with an accuracy of up to ten, as well as for 25% and 75% are presented. For this purpose, two series are used - with a circle and with a square. For each series, two options for presenting the corresponding percentage are used. In one option, there is a division into 10 equal sectors (respectively equal rectangles), some of which are solid, which ensures the presentation of the corresponding percentage. In the other option, there is no division into sectors (rectangles). Different ideas for using 3D printed models in studying percentages are indicated. The possibilities for their use in studying fractions are also discussed. The development of these resources is related to ensuring the education of students with visual impairments, but their use by other students is also appropriate.