Abstract
Along with critical thinking, collaboration and communication, creativity is considered a crucial skill to prepare students for uncertain societal challenges and future jobs in the twenty-first century. Therefore, it is not enough to just encourage creativity in education, but it is also important to assess it, because assessing creativity helps to recognise and understand students' creative abilities. In this paper, we focus on mathematical creativity and link it to general definitions of creativity. We thoroughly investigate and analyse methods that foster mathematical creativity and enable its assessment, highlighting innovations that result from the application of these methods. The methods we consider focus on approaches to problem posing and problem solving, including open-ended tasks. The results show that these methods not only enhance students' mathematical creativity, but also contribute to more connected mathematical knowledge and improve problem-solving skills.