The Mathematical Olympiad is coming soon.
Sun Liang and Zhao Yi from 13th Middle School were the only ones who made it to the provincial competition. Niu Lianhua took the Olympiad very seriously. During their regular practice, both Sun Liang and Zhao Yi performed well, showing problem-solving skills far superior to hers.
Niu Lianhua couldn't teach them much, but she could help with buying reference books and supervise their practice.
During lunchtime, Niu Lianhua would check on Sun Liang and Zhao Yi's progress with the Olympiad problems. She would provide them with prior and classic problems, urging them to complete them and understand the solution, even if they couldn't solve them themselves.
Zhao Yi also valued the Mathematical Olympiad highly.