Descripción: “...The variation of the speed versus shear strength of the undrained shear strength was evaluated by conducting direct shear tests on undisturbed samples under Unconsolidated and Undrained conditions, soil samples were recovered using shelby thin-walled tubes, graphs of the variation of the shear strength, cohesion and friction angle versus speed and their impact on design. ...”

Descripción: “..." In this project it is assumed the organization of the curriculum, the curriculum of science and its continuing restructuring as an ongoing investigative work by the group of teachers of different levels of education, in a way such that recognize the problems around teaching and learning science in the particular context of each institution, formulate and implement solution strategies and establish plans for monitoring and evaluating these processes in benefit of the formation of scientific competences.Key Words: Teaching, natural sciences, curriculum, research school, science competition ...”