eng Science and Education Publishing American Journal of Educational Research 2327-6150 2021-12-20 9 12 746 754 10.12691/education-9-12-7 EDUCATION20219127 article Adolfo E. Obaya Valdivia obaya@unam.mx 1 Carlos Monta?o Osorio 1 Yolanda Marina Vargas Rodr¨ªguez 1 Rub¨¦n Gerardo Ponce P¨¦rez 2 FES Cuautitl¨¢n UNAM. Depto. Ciencias Qu¨ªmicas. Fisicoqu¨ªmica. Campus 1 Escuela secundaria 252 Agust¨ªn Cue C¨¢nobas SEP, CDMX, M¨¦xico This paper presents strategies that support the realization of experimentation in times that we cannot be in face-to-face situations in teaching laboratories. Experimentation and recreational activities, concept maps, bibliographic research, analogies, in combination with didactic readings were the main strategies on which it was supported for the realization of this work. It is exemplified by the didactic sequence ¡°Influence of pH on plant irrigation." with its respective didactic reading. The results of the exercise of evaluation and regulation of the learning obtained in a Course of High School Chemistry are also presented. http://pubs.sciepub.com/education/9/12/7/education-9-12-7.pdf experimentation didactic sequence pH plant irrigation high school chemistry