Challenges of teaching mathematics in 21st century​

Personalization

Explanation:

The age old “one size fits all” teaching method has long outgrown, with the focus moving on to different styles of learners. Students are no longer forced to learn beyond their own understanding. Instead, teaching is adjusted to help students understand, according to their learning styles. Teachers are now expected to personalize their teaching methodologies and assessments, depending on the learning styles of students, laying the foundation for student-centered learning. Various learning styles clubbed together, with fixed periods of time, can make personalization challenging.

the correct answer is "dissent"

explanation:

because dissent is when one or more judges express disagreement with the majority in court, in specific legal systems.   an   argument in opposition is presented to the court, with a different interpretation, or application.

b

explanation: