Pupils from Years three to six committed to practising their instrument or singing every day throughout the week-long challenge, collecting sponsorship money to do so.
Some pupils even put on concerts at home to raise extra cash. At the end of the week, pupils were able to show what they had been working on in their music lessons.
Head of Junior Music Ms Duval was delighted to hear how much effort the pupils had put into their performances over the week and said she could hear the improvement in their playing.
She was also delighted that the total beat last year’s fundraising and exceeded her own target for the event.
CLIC Sargent Fundraising Manager Helen Lye said: "A huge thank you to the teachers and pupils at Sydenham High Junior School for choosing to take part in Practice-a-thon for the second time.
"Every penny from each music, dance or singing event helps CLIC Sargent to support families affected by childhood cancer across the UK.
"Lack of funds means the charity can only help two out of three children and young people with cancer – that’s why Sydenham High's support makes such a difference."
Find out more
To find out how you or your school can help support CLIC Sargent, please contact Helen Lye on 0208 752 2867 or email: email@example.com.