Lecconews, 13/02/2020: "Imparare risolvendo sfide. Al Grassi il corso per docenti per una didattica innovativa"
https://www.lecconews.news/lecco-citta/imparare-risolvendo-sfide-al-grassi-il-corso-per-docenti-per-una-didattica-innovativa-271796/#.XkWmq2hKjcs
Lecco online, 07/02/2020: https://www.leccoonline.com/articolo.php?idd=50266&origine=1&t=Il+corso+per+docenti+delle+superiori+%22Challenge+Based+Learning%22
blog 06/02/2020: https://www.claudiobottagisi.com/2020/02/challenge-based-learning-corso-di.html
