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Knowledge of quadrilateral at elementary school

Tláskal J., Benešová L., Slezáková J., Molnár J.

Scientific Issues of Jan Długosz University in Częstochowa. Mathematics

2011

Vol. 16

361--366

Quadrilaterals are more difficult than triangles for some students of elementary schools. This pilot study compares knowledge of quadrilateral of pupils of elementary schools and pupils of the same age at grammar schools. Some students prefer algebra to geometry, because it includes practical problems. The aim of this pre-research is to find out differences in knowledge of quadrilaterals between pupils of elementary and grammar schools.

One parameter's configurations

Paprocki E., Szynal A.

Zeszyty Naukowe Politechniki Rzeszowskiej. Matematyka

1998

z. 22 [170]

115-119

Authors give characterization of the group of one parameter's configurations.

Harmonic quadrilaterals

Wilczek K.

Zeszyty Naukowe Politechniki Rzeszowskiej. Matematyka

1998

z. 22 [170]

139-149

In the paper some harmonic quadrilaterals to the given quadrilaterals are investigated. Every vertex of such harmonic quadrilaterals is the harmonic center of three vertex given quadrilateral.