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Realistically you can’t gain admission from a cc.
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This. Your high school record will be viewed and will play a significant factor in your admission. To add onto that, even Stanford’s website says that transfer admission is considerably more competitive than freshman admission.
The general consensus is that if you didn’t have the stats to get admitted as a high school senior, you won’t really have a chance to get admitted as a transfer student.
If you’re taking Algebra 1 as a freshman then I would honestly start exploring options other than ivies and similarly competitive schools, because nearly 100% if not all students admitted to top-tier schools have taken Calculus by the end of high school. Not having Calculus completed raises serious concerns about the rigor of your courseload and school. To give you an idea of your competition, my school has most freshmen taking Pre-Calculus their freshman year, but the majority of students still aren’t admitted to schools like Harvard or Stanford even with high standardized test scores and amazing extracurriculars.