Question

why do children's write in blue colour pen and teachers correct in red colour pen speak out in terms of dispersion and the frequency of rainbow colors​

Answer 1

Answer:

good question

Explanation:

because blue to student indicate good qualities red ink for teachers for their power

Answer 2

Answer:

The intention of using a blue pen is to bring uniformity.. and teachers used red pen to spot the corrections made of red ink against black or blue ink to calculate a final grade.