This thesis focuses on the Abaku game. Abaku is a game with numbers similar to Scrabble. The aim of the thesis was to find out whether there is a relation between playing the Abaku game and pupils' numerical skills and their understanding of mathematical operations. 843 pupils (401 players and 442 non-players) from 10 schools were tested in total. Data were collected through questionnaires and 2 tests. The questionnaire surveyed the popularity of and success in mathematics and whether the pupil was a player. In such a case, the questionnaire looked at how often a player plays and how many years he has been playing. The first test focused on the relation between playing Abaku and numerical skills and the second between Abaku playing and understanding of additive and multiplicative operations. The statistical survey was used to verify the validity of the established hypotheses. I filled the data into Excel and Minitab, where I used analytical tools. I searched for the relation between being a player, the liking of mathematics, the success in mathematics, the number of test points earned, the test completion speed, the playing frequency and the number of years played. Most of the results are sorted by grades. The research did not show any significant influence of playing Abaku on the numerical...

This thesis deals with the Czech game called Abaku, which was created as a variation of Scrabble using numerals instead of letters. The aim of this thesis is to find out what numerical and structural skills the pupils of elementary school, who are participating in the final of Abaku League, have, and what is their relation to mathematics. The used methods are the analysis of the games played on the qualifying rounds of Abaku League, a questionnaire for the finalists of the league and an interview with several of them. Author has 165,640 records of played games for analysis, 1,157 of that were analyzed. The questionnaire was completed by 38 players and seven of them participated in the interview. The questionnaire consists of questions about the popularity of mathematics, the frequency and duration of playing Abaku, and ten tasks to identify the numerical and structural skills of the players. Above all, the research showed that the surveyed Abaku players are well-versed in the area, know how to work with powers, and show curiosity for other mathematical disciplines. The theoretical part of thesis consists of a research of available literature concerning Abaku, introduction of the game including rules and development stages of the player, comparison of Abaku with games of similar type and...

This thesis is focused on the idea of an additive triad in the 1st year of elementary school. Specifically, it addresses the problems of additive operations, their reading and writing, the commutative law, and the transition to an inverse additive operation. The objectives of the diploma thesis are two: - to find and to characterize the cognitive phenomena that occur in solving the tasks of addition and subtraction of small natural numbers, thus contributing to mapping the area of the pupil mental scheme of the additive triad. - to describe my own development in the field of research and experimentation. The content of the theoretical part is the research of professional literature, the commentary on the tasks in textbooks for the 1st year of three publishing houses and the description of the new didactic environment in Hejný's Method - Abaku. The practical part is devoted to the recording and description of cognitive phenomena, which appear in solving problems focused on additive operations in the work of pupils from the first years of three different elementary schools, and to a description of my mistakes that occurred during experimentation. The result of this diploma thesis are denominated and commented cognitive phenomena, which appeared in the solving strategies when solving the problems of...