The majority of the pieces that make up the structures of the piano are wooden products. Large piano brands provide resources for the materials. They use various forest products or they create their own forests. Respecting life, biodiversity together with protecting nature and our world are important elements for sustainable environmental…

The competency-based approach conceives mathematics as a necessary tool for dealing with daily-life tasks. Many studies have focused on examining the low math competency people show when solving problems in real-life contexts, but rarely characterize the type of mathematics needed in these contexts and how people use this mathematics. The current…