| Clue | Source | Date |
|---|---|---|
| U.S. History or Calculus BC, e.g. | New York Times | 18 Sep 2025 |
| Challenging bio course | LA Times Daily | 17 Aug 2025 |
| Sr.'s course for college credit | LA Times Daily | 09 Jul 2024 |
| Hard HS course | Universal | 31 May 2024 |
| College level HS course | LA Times Daily | 29 Apr 2024 |
| College-level course for high schoolers | USA Today | 23 Sep 2022 |
| High school course such as Calculus BC | Universal | 27 Jan 2021 |
| H.S. option for the college bound |