Welcome to CK secondary school science department. 
Find out about our classes and faculty members, search for  helpful study materials.

"The life and soul of science is its practical application" - Lord Kelvin

Study areas
Biology

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renjes.fernando@chandrakusuma.com

Mr Renjes received a Bachelor of Physics Education from the State University of Medan in April 2011. He immediately became a physics teacher because he enjoys the challenges that teaching physics brings.

His specialties in physics are kinematics and mechanics, and he is also head of the Young Researches program.

Hobbies include: playing guitar, chess and badminton.