Holiday units that respect the culture.
Holiday units are where most Spanish curriculum gets lazy. Día de los Muertos becomes Mexican Halloween. Cinco de Mayo becomes margaritas. The kid in your room whose family actually celebrates these holidays watches you teach it wrong and decides to disengage. These units are built to not do that.
Every holiday unit ships with the comparison table (what it is vs. what people think it is), authentic resources from the country of origin, and a heritage-respectful summative. No taco emoji. No skull face paint that nobody in Oaxaca would recognize.

Hispanic Heritage Month (Sept 15 to Oct 15) and Día de los Muertos (late October) ship first. Las Posadas and Carnaval follow in the second wave. All built with the comparison table and the heritage variant baked in.
Every Spanish teacher hits the morning when the kid is throwing up at 5:30am and you have not even thought about what period 1 is going to do.
A good single lesson is not a worksheet.
A mini-unit is the right unit of work for most of the year.
AP Spanish is the test that pretends to be a course.