Visualization of Selected Sangaku Problem as Didactical Phenomenon in GeoGebra

by Dusan Vallo
Published 2021-05-01

Numerical Calculation of Area of Elliptical Segments

by Dusan Vallo, Jozef Fulier, Lucia Rumanova
Published 2020-08-01

Students' Ability to Solve Geometry Problems with Emphasis on Interdisciplinary Relations

by Lucia Rumanová, Dušan Vallo, Katarína Laššová
Published 2020-11-01

The Impact of Formative Assessment on Results of Secondary School Pupils in Mathematics: One Case of Schools in Slovakia

by Lucia Rumanová, Dušan Vallo, Júlia Záhorská
Published 2020-08-01

Blueprint as a Motivating Factor for the Development of Spatial Ability in Teaching of Mathematics: An Action Research Study

by Lucia Rumanová, Dušan Vallo, Edita Smiešková
Published 2021-05-01

Examination of Spatial Ability with Emphasis on Solving Cube Tasks

by Dusan Vallo, Lucia Rumanova, Viliam Duris, Lubomir Rybansky
Published 2020-02-01

Artifical Microorganism Infection in Aviation Kerosene

by Dušan Vallo, Ľubica Kvasnicová, Igor Kvasnica, František Blaško, Želmíra Hocmanová
Published 2004-12-01

Drivers of the Distribution of Ecological Species Groups in Temperate Deciduous Managed Forests in the Western Carpathian Mountains

by Marian Gabor, Pavel Beracko, Vladimir Faltan, Igor Matecny, Lukas Karlik, František Petrovič, Dusan Vallo, Ivo Machar
Published 2019-09-01