主要是代数几何 target foundational skills in algebra, geometry,

 target foundational skills in algebra, geometry, and quantitative reasoning 

其它T5： P是Precalculas, S 提供外部（卡内基基金会）的在线课。 Y M没有数学补课。

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When the remedial program’s pilot was announced in September, Harvard’s director of introductory math, Brendan Kelly, told The Harvard Crimson that they were seeing students facing “a challenge that was unreasonable given the supports we had in the [regular] course” in the wake of the pandemic.

“Students don’t have the skills that we had intended downstream in the curriculum,” Kelly added. “We want to make sure that students are on a path to success starting from their first day.”

The new course, called Math MA, is one year long and meets five days a week, compared with the regular two days. According to the department’s website, “extra support will target foundational skills in algebra, geometry, and quantitative reasoning that will help [students] unlock success.”

Had these students studied for the SATs — which, according to the College Board website, tests them on four “areas of math that play the biggest role in college and career success: algebra, advanced math, problem solving . . . and geometry” — they wouldn’t need Math MA.