The specific aim of the research conducted for the purpose of this paper was to determine whether there is a difference in the application of frontal and parallel departmental methodical organizational form of work to the functional abilities of children of early and preschool age. The study was conducted on a sample of 20 children. These are six-year-olds, students of the preschool age group of kindergarten "Ivanić-Grad". Palpation of the cervical artery measured the heart rate of children after the main "A" part of the hour within two hours of physical and health training. In the first hour of physical and health culture, as a methodical organizational form of work, in the main "A" part of the clock, frontal work was used, while in the second hour, parallel departmental work was used. Both hours spent are substantially the same. Therefore, the topics encountered by the children in the main "A" part of the lesson on the first and second hours spent are the same. The only difference between two hours was made in the selection and implementation of methodical organizational forms of work. By measuring the heart rate, or heart rate per minute, the functional abilities of children were examined. The following descriptive parameters were calculated on the given sample: arithmetic mean, minimum and maximum heart rate per minute, range, and standard deviation. T-test analysis tested for the existence of differences between arithmetic means of heart rate measured after the use of frontal and parallel departmental work. The analysis of the results shows that there is an influence of the application of frontal and parallel departmental methodical organizational form of work on the functional abilities of children of early and preschool age. Namely, after parallel compartmental work, the measured heart rates of children were higher than those measured after frontal work. Thanks to the analysis of the results obtained from the research, it can be argued that the application of different methodological forms of work really affects the functional abilities of early and pre-school children.