We can’t really tell you how to do this so you’re just gonna have to do it yourself. Sry.
In order to state what happens in order to make the poem more understandable.
Answer:
At participation and performance in rigorous high school courses among California high school students, both overall and across demographic and racial/ethnic groups. While enrollment in rigorous courses has been increasing, particularly among students who are traditionally underrepresented in higher education. Here's my answer that I would put! =)