Anglo Chinese School, Klang

In 1892, the Klang District Officer, Walter W Skeat and Loke Yew encountered obstacles when raising money for a school building. They were finally successful in renting the premises of Penghulu Mohid's house in Jalan Rembau to start the new school. ACS initial enrolment was 14 students, with one teacher. The school was officially opened by Sir William Hood Treacher in 1893.

In 1896, the school became a British public school. The school was later sent by the Episcopal Methodist Mission and it was named Anglo Chinese School in 1915. In 1920, the original building, which was made of wood, was almost completely destroyed by fire.

The following year, a new building was erected at Jalan Raya Barat, its present-day location. It was opened by Oliver Marks, a resident of Selangor. Sultan Alaeddin Sulaiman was also present at the opening of the school. That year, when Reverend Abel Eklund and his wife Ruth Eklund arrived in Klang, there were 15 female pupils in ACS.

On 24 May 1924, Ruth Eklund founded the Methodist Girls' School (MGS), an all-girls school located in the proximity of ACS.[3] In 1922, the first batch of students took the Senior Cambridge Exams. Two years later, the new school magazine, called The School Review, was published. In 1925, The First Klang Scouts Troop was founded.

In 1941, a new building was built to accommodate the increasing enrolment. From 1942 to 1945, during the World War II period, the school became the head office of the Japanese army. In 1951, a new science laboratory was opened by Sultan Hisamuddin Alam Shah Alhaj. The whole school was renovated six years later. During the same year, the first Klang Boys' Brigade was founded with the assistance of Capten Peter Dawson and Reverend Ronald Buttler-White. In 1958, Additional Mathematics, and Pure Sciences, which encompasses Physics, Chemistry, and Biology, were introduced to Form 4 (16-year-old) students.

In 1961, the ACS Old Boys' Association was registered, with Koh Liang Sih as president. In 1963, a new three-storey building was completed. It had 11 classrooms, one office, one teachers' lounge, and one Geography room. It was declared open by Capten Abdul Hamid, the Malaysian Minister of Education. In 1973, the Parent-Teacher Association (Malay: Persatuan Ibu Bapa dan Guru; PIBG) was founded in the school hall. The first chairman was Adam bin Haji Yunus.

A three-storey block with 11 classrooms, and another block of four storeys which houses a teachers' room, an office, and an air-conditioned library were completed in 1978. It was officially opened by Y.B. Dato' Musa Hitam, the Minister of Education of Malaysia at that time. By 1979, new Form Six classes were created.

In 1980, the Report Card Day was introduced, and in 1981, the Mini Canteen day was held for the first time. In 1983, the PIBG raised funds to build a bicycle court, a tennis court, a sepak takraw court, a basketball court and a foyer. Ten years later, a celebration was held to commemorate ACS's 100th anniversary in both the primary and secondary schools. In 1997, the name of the primary school was changed to Sekolah Kebangsaan (SK) Methodist ACS Klang, while the name of the secondary school remained the same.

In 2006, the nature society club and the school itself have face a major problem, which was the trailer which it is used by the club to store the collected recycle things caught fire. The school call the fire department to put off the fire but unfortunately the gates to enter the school compound was locked with heavy duty chains and lock pad.

In 2007, ACS Secondary underwent a major refurbishment, including the exterior of the school, along with the classrooms and the corridors being repainted, and the toilet renovated. The fund which have been raised for the renovation are mostly deposited to the person's personal bank account.

In 2018, the secondary school celebrated the 125th anniversary of the school by organising a charity night to raise funds to build a multipurpose sports hall for students to utilise during co-curriculum sessions for sepak takraw, futsal, basketball, volleyball, and badminton among others.[4]

The crest of both the primary and secondary school bares a resemblance, with the motto being the only difference. Each symbol found on the crest has its own meaning which reflects on the school and its core principles.

Book: Symbolises the source of all knowledge.
Tiger: Symbolises strength, power, and bravery.
Anchor: Symbolises hope and efficiency.
Bird: Symbolises spirituality.
Ilmu Punca Kuasa: Knowledge is the Source of Power. (primary)
Sapienta Potentia Est: Wisdom is Power. (secondary)

"Sekolah Unggul Penjana Generasi Terbilang," which is written in the country's national language. The translated version of the vision would be "To be a top performing generation school".

"Membangun Potensi Individu Melalui Pendidikan Berkualiti," which is written in the country's national language, as with the vision. The translated version of the vision would be "To build potential through quality education".

The school's charter consists of five commandments, which are noted in the country's national language, as with the vision and mission. A translated version of the charter is noted at the end. The commandments are as follow:

1. Melaksanakan segala arahan daripada KPM, JPNS, dan PPD.
2. Menyediakan persekitaran yang kondusif untuk warga sekolah.
3. Pengajaran dan pembelajaran berjalan lancar dan terurus untuk melahirkan pelajar cemerlang.
4. Memberi layanan sama rata kepada semua pelajar, ibu bapa, dan staf sekolah.
5. Menjalin hubungan baik dengan komuniti dan agensi luar.[lower-alpha 4]

There are 4 classes in each cohort at the primary school for students between standard 1 and standard 6. Since the school has two sessions: morning and afternoon, each classroom at the school is used by both sessions. There are 12 classrooms in total at the primary school. Students are grouped according to academic achievement and placed in the following classes:

• Bestari
• Harmoni
• Kreatif
• Maju

There are 7 classes at each level for students between form 1 (ages 12 or 13) and upper form 6 (ages 17, 18, or 19). Students at the secondary school are also grouped by academic achievement and strength. The classes include:

Classes

• Yakin
• Gigih
• Cergas
• Azam
• Setia
• Budi
• Jujur

Labs

• Science
• Chemistry
• Biology
• Physics
• Information Technology (IT)