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Research on the Development of the Percentage Visual Estimation with Computer Models
in Year Thirteen (2025) / Issue Fourth, Author(s): Toni Chehlarova, Ivan Petkov, Neda Chehlarova, Natalia Gecheva | DOI: 10.15547/PF.2025.025The article describes a study on the development of the percentage visual estimation and presents the results of participants from different age group...STEAM Workshops with a 3D Pen
in Year Thirteen (2025) / Issue First, Author(s): Neda Chehlarova, Koya Chehlarova, Natalia Gecheva | DOI: 10.15547/PF.2025.004...and educational experts from several cities in Bulgaria participated in them. All participants made their own original work on the topic "Jewelry with...