EDUCATIONAL MATTERS
Mathematical Fallacies and Their Use in the Algebraic Curriculum in Schools
Kamelia Koleva – page 263
One Type of Problems with Infinite Number of Cube Roots /
Radan Miryanov, Katya Chalakova – page 284
Some Math Quizzes for Presenting a Number by Using Equal Digits and Math Operations /
Deyan Mihaylov, Velina Yordanova – page 290
A Note on the Arbelos in Wasan Geometry: Satoh’s Problem ND a Circle Pattern /
Hiroshi Okumura – page 301
EDUCATIONAL TECHNOLOGIES
Formulaes for the Distances from the Brocardians and the Miquel Point in a Quadrilateral to Its Vertices and the Midpoints of Its Sides and Diagonals
Veselin Nenkov, Stanislav Stefanov, Haim Haimov – page 305
On the Concept of Bitwise Operations in the Programming Courses /
Krasimir Yordzhev – page 325
Results of the First Week of Cybersecurity in Arkhangelsk Region /
Olga Troitskaya, Olga Bezumova, Elena Lytkina, Tatyana Shirikova – page 340
Didactic Potential of Remote Contests in Computer Science /
Natalia Sofronova, Anatoliy Belchusov – page 352
CONTEST PROBLEMS
Contest Problems of this Issue – page 364
Solutions of the Contest Problems from Issue 4, 2018 – page 365
READ IN THE LATEST ISSUES OF „AZBUKI“ JOURNALS
GUIDE FOR AUTHORS – page 373
