Critical thinking (CT) is a 21st-century skill critical in education and learning. Second language teaching has focused on language form, and there needs to be a shift from form-focused instruction to a function-focused paradigm, where students simultaneously practice language learning and deal with real-world issues in authentic contexts…

Recently, the Modern Language Association (MLA) has called for proposals on the "greening" of the Spanish curriculum for their 2020 convention. University students are and will be faced with complex twenty-first-century economic problems, such as food deserts, costs of industrial agriculture, organic regulations and market demand,…