A German teacher and education journalist, Alexander Brand, has identified key areas where German schools can learn from high-performing PISA nations like Singapore, Japan, Korea, and Estonia. Brand's research, detailed in his upcoming book "Die Bildungsweltmeister," highlights that while Germany ranked 22nd out of 81 countries in PISA 2022, these top-performing nations excel due to superior teacher professional development, a focus on cognitively activating lessons, and a less stratified early education system. Singapore, for instance, offers teachers 100 hours of annual professional development, fostering collaborative lesson planning and reflection, a stark contrast to Germany's often limited opportunities. Brand advocates for adopting these strategies to improve educational quality and equity in Germany.