Covered in the methodology of scientific research, the study objective was determined with the following statement: Demonstrate the degree of influence of the tools to learn grammar rules in the improvement of spelling in students of the English specialty of the Higher Pe- dagogical Institute " Marcos Duran Martel” Huánuco - 2020. The methods were: observation and experimental, the first to describe and explain the variables, events and situations perfectly identified and inserted in a theoretical context and the second to apply the independent variable on the dependent. Next, maintaining the coherence of the research, the type was formulated, the present study considered the experimental type, since it is planned to manipulate one variable to measure its effects on another, in order to determine the influence of the improvement of a variable on other. To establish the degree of influ...