Answer:
C - Claim: what do you stand by/believe in (do NOT use "I think" be confident )
E - Evidence: how your statement is proven (use numbers, text from articles, etc.)
R - Reasoning: how does your evidence match your claim
Ex:
C: Studying for tests will increase your grade
E: "73% of students that studied got an 80% or above on their math test. While 92% of the students that didn't study got lower than an 80%"(made up for example)
R: Studying does improve grade
As many people agree studying for tests will increase your grade. As Billy Bod of Berkely (example name) explains "73% of students that studied got an 80% or above on their math test. While 92% of the students that didn't study got lower than an 80%" This shows that taking some time out of your day to study can be beneficial.