Yusof Ishak Secondary School

Yusof Ishak Secondary School (YISS) is a co-educational government secondary school located in Punggol, Singapore. The school is named after Yusof Ishak, the first President of Singapore.

History
The school was started under the name Jubilee Integrated Secondary School in 1965, with 984 pupils in two streams, English and Malay. It was officially opened as Yusof Ishak Secondary School at Jubilee Road on 29 July 1966, named after the first President of Singapore, Yusof Ishak. The school moved to Bukit Batok in December 1998 and inaugurated on 29 July 2000 by Ong Chit Chung, Member of Parliament for Bukit Timah GRC.

YISS was the first school to top the value-added ranking in both Express and Normal Streams. In 2010, it was evaluated as value-added, and its National Cadet Corps (Land) Girls unit received the Best Unit award.

In 2018, in response to declining student numbers at Bukit Batok and rising demand in Punggol, the school announced its relocation to Punggol. To minimise disruption to students, MOE stopped admitting new Secondary 1 cohorts to the current Bukit Batok campus in 2019 and 2020.

The school began receiving new students at its relocated Punggol campus from 2022.

Uniform
Students wear a white shirt with the school badge worn on the left collar, coupled with dark blue shorts (for male lower secondary students), pants (for male upper secondary students), or skorts (for females). The school tie is worn on formal school functions.

Core values
The six values of YISS are Integrity, Self Respect, Purpose, Inquisitiveness, Resilience and Empathy. The school motto is Ilmu Suluh Hidup, which means "knowledge is the light of life" in Malay.

Co-curricular activities
Every YISS student is required to have a co-curricular activity. The CCAs are divided into categories: Uniformed Groups, Visual and Performing Arts, Physical Sports and Clubs & Societies. The following are the official CCAs of the school:

Uniformed Groups

Visual and Performing Arts
 * NCC
 * NPCC
 * Boys Brigade
 * Choir
 * Concert Band
 * Modern Dance
 * Chinese Orchestra

Physical Sports
 * Wushu
 * Table Tennis
 * Badminton
 * Basketball (Boys)
 * Fencing
 * Softball (Girls)

Clubs & Societies
 * Infocomm/Media
 * Robotics (best CCA)
 * Farming Club (worst CCA)
 * ELDDS
 * Art