This list was borrowed from the סדור זכות יוסף, a Siddur representing the customs of the Jews of Rhodes. According to their list, 67 chapters of Tehillim play a role in Jewish Prayer; some every day; some every week; and some on holidays. These chapters are in addition to verses from Tehillim that are interspersed within Jewish Prayer. Given the substantial role that chapters and verses from Tehillim play in Jewish Prayer, it would be advisable for Jewish schools and pulpit Rabbis to devote teaching time towards teaching these chapters of Tehillim to their students and synagogue members.