Final answer:
CCSS.B.4 primarily focuses on constructing equations to represent and solve real-world or mathematical problems using algebraic techniques.
Step-by-step explanation:
The CCSS.MATH.CONTENT.HSA.CED.A.4 standard, which is being referenced as CCSS.B.4, primarily emphasizes constructing equations to represent real-world situations or mathematical problems. Students should learn to use variables to symbolize quantities and create equations and inequalities that can be solved by analyzing these quantities. This standard is foundational for understanding how to represent and solve problems using algebraic methodologies.