Trigonometry is typically taught in 11th grade.
According to a common math course sequence, many schools follow a progression where students take:
- 9th grade: Algebra 1
- 10th grade: Geometry
- 11th grade: Algebra 2/Trigonometry
- 12th grade: Precalculus or Calculus
However, it's important to note that this progression is not universal. Some students might take trigonometry in a different grade level, depending on their academic pace. For instance, students working ahead might encounter it earlier, while those who are behind may take it later. The reference states, "This progression might vary for students who are working ahead or behind the standard math curriculum."
Therefore, the most common grade to learn trigonometry is 11th.
