Doting father and tutor John Yeo tucks his three-year-old girl to bed every night, but he has not been able to do this frequently in the past month.
The reason: The PSLE season is here. Barely three months after setting up his Serangoon tuition centre, Learning Out Of The Box, which focuses on Primary 6 Mathematics, the 34-year-old already has 35 Primary 6 students.
For these and the thousands of Primary 6 students around the island, today marks the start of the most important exam of their life so far.
And the anxiety is not just felt by students and their parents - tutors are feeling the heat too.
Players in the industry said they typically see an increase in the number of Primary 6 students from July, about three months before the PSLE.
The first paper is for English and the last paper, for Higher Mother Tongue, will end next Wednesday.
Most of such students were failing miserably in the subject before their parents decided to sign them up for the class.
Some of them started classes just two weeks ago, after doing badly in their preliminary exam. And most of them have started showing improvement. For instance, one of Mr Yeo's students doubled his score from 20 to 40 marks in a month.