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Academy of Singapore Teachers (AST)

Master Teachers

Meet the Master Teachers at AST, who lead and mentor educators across subjects to build a skilled and passionate teaching community.

Last updated 5 August 2026
Large group of people posing for a photo on a brick courtyard outside a building labeled Lecture Theatre 3.

Building a culture of teacher-led professionalism and pride in the teaching fraternity

The Office of Subject Chapters in the AST is home to Principal Master and Master Teachers from four Subject Clusters, namely, Humanities and CCE, Learner Profile, Mathematics and Science subject clusters. Our Principal Master and Master Teachers are committed to growing the professionalism of the teaching fraternity, leading, mentoring and inspiring teachers to be caring, competent and passionate educators who live out the ethos of our teaching profession, to provide quality education for our students.

Subject Chapters in AST

Subject chapters in AST by cluster

Humanities & CCE

Mathematics

Science

Learner Profile

Guided by the professional learning philosophy of "Teacher Ownership, Teacher  Leadership" of learning, the Subject Chapters in AST bring together groups of educators to learn from and with each other. Different professional learning platforms are designed to deepen the pedagogical content knowledge of teachers in the Subject Chapter, guided by specific professional learning directions set by the Subject Chapter Core Team and supported by the ST-LT Network Core Team and MTTs.

Geography Master Teachers

Smiling man with glasses wearing a light blue shirt, standing in front of green tropical plants.

Mr Yuen Kah Mun
Principal Master Teacher / Geography
Email: Yuen_Kah_Mun@moe.gov.sg

A smiling woman with dark shoulder-length hair wearing tortoiseshell rectangular glasses.

Ms Lim Puay Yin
Master Teacher / Geography
Email: Lim_Puay_Yin@moe.gov.sg

Smiling woman with short dark hair and glasses, wearing an orange shirt and gray blazer.

Ms Lum Kit Kuan Melanie
Master Teacher / Geography
Email: Melanie_Lum@moe.gov.sg

Smiling woman with short dark hair wearing a white top, standing in front of a brick wall.

Ms Michele Tang Sheng Lien
Master Teacher / Geography
Email: Michele_Tang@moe.gov.sg

History Master Teachers

A middle-aged man with a grey mustache smiling, wearing a light blue striped shirt against a plain white background.

Mr Andrew Anthony
Principal Master Teacher / History
Email: Anthony_Andrew_Michael@moe.gov.sg

A middle-aged Asian man with short dark hair wearing a dark patterned shirt, facing the camera with a neutral expression.

Mr Tham Chin Pang Joseph
Master Teacher/ History
Email: Tham_Chin_Pang@moe.gov.sg

Middle-aged man with dark hair and glasses wearing a light beige button-up shirt, smiling slightly against a plain wall.

Mr Yeo Tze Chiang Lloyd Luc
Master Teacher/ History
Email: Lloyd_Luc_Yeo@moe.gov.sg

A smiling woman with reddish-brown hair and bangs wearing a dark floral top indoors.

Ms Ong Daphne Rachel
Master Teacher/ History
Email: Daphne_Rachel_ONG@moe.gov.sg

A smiling woman with dark shoulder-length hair wearing a navy blue top, with a blurred green outdoor background.

Ms Candice Seet
Master Teacher/ History
Email: Candice_SEET@moe.gov.sg

Social Studies Master Teachers

A middle-aged woman with glasses, red bindi, gold earrings, necklace, and long dark hair wearing a blue top.

Mdm Premaletha Gopalakrishnan
Master Teacher / Social Studies
Email: Premaletha_Gopalakrishnan@moe.gov.sg

A smiling woman with short brown hair, red bindi, nose stud, pearl earrings, gold necklace, and green top.

Mrs Renuka Thankak Krishnah
Master Teacher / Social Studies
Email: renuka_thankak_krishnah@moe.gov.sg

A smiling woman with dark reddish hair wearing a black sleeveless top with white floral embroidery against a white background.

Ms Esther Leong
Master Teacher / Social Studies
Email: Esther_Leong@moe.gov.sg

Economics Master Teachers

A smiling woman in a white top with colorful buttons pinned on it, seated in a yellow chair.

Dr Tan Dai Hwee
Master Teacher / Economics
Email: Tan_Dai_Hwee@moe.gov.sg

Mathematics (Primary) Master Teachers

A smiling woman with long dark hair and blue-framed glasses wearing a blue sleeveless top against a white background.

Ms Chan Min Lie
Master Teacher / Primary Mathematics
Email: CHAN_Min_Lie@moe.gov.sg

A middle-aged Asian man with short black hair wearing a dark shirt and patterned tie, standing outdoors.

Mr Choon Ming Kwang
Master Teacher / Primary Mathematics
Email: Choon_Ming_Kwang@moe.gov.sg

Young woman with long dark hair and a patterned top poses for a passport-style portrait against a white background.

Dr Chang Suo Hui
Master Teacher / Primary Mathematics
Email: Chang_Suo_Hui@moe.gov.sg

A young woman with straight dark hair and bangs, wearing a black lace top, smiling slightly against a white background.

Mdm Loh Guat Bee
Master Teacher / Primary Mathematics
Email: Loh_Guat_Bee@moe.gov.sg

A smiling middle-aged woman with brown hair and red-framed glasses wearing a light blue floral top.

Dr Lim Li Gek Pearlyn
Master Teacher / Primary Mathematics
Email: Pearlyn_Lim@moe.gov.sg

Mathematics (Secondary) Master Teachers

A middle-aged Asian man with short black hair, smiling, wearing a white collared shirt against a beige background.

Dr Tan Liang Soon
Principal Master Teacher / Secondary and JC Mathematics
Email: Tan_Liang_Soon@moe.gov.sg

A smiling woman with dark hair wearing a pink top with a decorative brooch, standing indoors.

Dr Foo Kum Fong
Master Teacher / Secondary Mathematics
Email: foo_kum_fong@moe.gov.sg

A middle-aged woman with short black hair and oval glasses, smiling, wearing a dark top against a white background.

Dr Leong Swee Ling
Master Teacher / Secondary Mathematics
Email: leong_swee_ling@moe.gov.sg

Smiling man wearing a blue striped shirt and dark patterned tie against a white background.

Mr Chew Chong Kiat
Master Teacher / Secondary Mathematics
Email: Chew_Chong_Kiat@moe.gov.sg

A person with short dark hair wearing a yellow checkered collared shirt, posed against a white background.

Mdm Low Leng
Master Teacher / Secondary Mathematics
Email: Low_Leng@moe.gov.sg

Middle-aged Asian man wearing a striped shirt and dark dotted tie, with short black hair.

Mr Ng Song Beng
Master Teacher / Secondary Mathematics
Email: NG_Song_Beng@moe.gov.sg

Young woman with long dark hair and a slight smile, wearing a dark top, against a white background.

Mdm Pang Yen Ping
Master Teacher / Secondary Mathematics
Email: Pang_Yen_Ping@moe.gov.sg

A woman with straight dark shoulder-length hair wearing a white striped shirt, photographed against a white background.

Mdm Sharon Lee Mei Ling
Master Teacher / Secondary Mathematics
Email: Sharon_Lee@moe.gov.sg

A smiling woman with long dark hair, rectangular glasses, and a gold necklace, wearing a dark floral top.

Dr Ng Lay Keow, Nicole
Master Teacher / Secondary Mathematics
Email: Nicole_NG@moe.gov.sg

Science (Biology) Master Teachers

Young Asian man with short dark hair wearing a blue and white checkered shirt, against a white background.

Mr Poh Meng Leng
Master Teacher/ Biology
Email: Poh_Meng_Leng@moe.gov.sg

A smiling middle-aged woman with dark shoulder-length hair wearing an orange and white leaf-patterned blouse.

Ms Anna Koh
Master Teacher / Biology
Email: Anna_Koh@moe.gov.sg

A middle-aged South Asian man wearing glasses and a light blue collared shirt against a white background.

Mr Muhamad Salahuddin Ibrahim
Master Teacher / Biology
Email: Muhamad_Salahuddin_Ibrahim@moe.gov.sg

Science (Chemistry) Master Teachers

A smiling East Asian woman with shoulder-length hair wearing a patterned top, with colorful photos on the wall behind her.

Mdm Tan Irene
Principal Master Teacher/ Chemistry
Email: Irene_Tan@moe.gov.sg

A woman with long dark hair and glasses wearing a black floral top, smiling slightly against a white background.

Ms Teng Siew Lee
Master Teacher / Chemistry
Email: Teng_Siew_Lee@moe.gov.sg

A smiling Asian woman with straight black hair wearing a red and black patterned top against a white background.

Mdm Goh Ai Lian
Master Teacher / Chemistry
Email: GOH_Ai_Lian@moe.gov.sg

Young Asian man with short dark hair, wearing a light green jacket, smiling slightly against a white background.

Mr Goh Kien Huay
Master Teacher / Chemistry
Email: GOH_Kien_Huay@moe.gov.sg

A man with black hair and glasses wearing a white shirt and dark red tie against a white background.

Dr Md Shahrin K S Moorthy
Master Teacher / Chemistry
Email: Md_Shahrin@moe.gov.sg

A smiling woman with dark hair pulled back, wearing a navy turtleneck, against a light gray background.

Mdm Audrey Tan
Master Teacher / Chemistry
Email: Audrey_Tan@moe.gov.sg

Science (Physics) Master Teachers

A man with short dark hair wearing a dark pinstripe suit, white shirt, and blue patterned tie against a white background.

Mr Yap Boon Chien
Master Teacher / Physics
Email: yap_boon_chien@moe.gov.sg

A smiling man with glasses, dark hair, wearing a black suit, light purple shirt, and gray tie against a blue background.

Mr Lee Siew Lin
Master Teacher / Physics
Email: lee_siew_lin@moe.gov.sg

Smiling middle-aged Asian man wearing a pink checkered shirt and dark tie against a light blue background.

Mr Ong Kia Siang Jensen
Master Teacher / Physics
Email: ONG_Kia_Siang@moe.gov.sg

A smiling man with a mustache wearing a white and blue striped shirt against a light blue background.

Dr S. Ravindran
Master Teacher / Physics
Email: S_Ravindran@moe.gov.sg

Science (Primary) Master Teachers

A woman with straight dark brown hair wearing a white top, smiling slightly, with a blurred office background.

Mdm Wong Mei Leng, Anne
Principal Master Teacher / Primary Science
Email: anne_wong@moe.gov.sg

Smiling young woman with dark shoulder-length hair wearing a black top, against a white background.

Dr Goh Su Fen
Master Teacher / Primary Science
Email: Goh_Su_Fen@moe.gov.sg

A smiling woman with short black hair wearing a pink top, photographed against a plain orange background.

Dr Judy Lee
Master Teacher / Primary Science
Email: Judy_Lh_Lee@moe.gov.sg

Smiling middle-aged Asian woman with short dark hair wearing a light pink collared shirt against a blue background.

Dr Tan Poh Hiang
Master Teacher / Primary Science
Email: Tan_Poh_Hiang@moe.gov.sg

Woman in denim jacket smiling in selfie beside a large dinosaur skeleton on display indoors.

Mdm Yong Song Ling
Master Teacher / Primary Science
Email: YONG_Song_Ling@moe.gov.sg

A smiling woman with short brown hair and brown rectangular glasses wearing a black top, in front of a blurred window.

Ms Madeline Chang
Master Teacher / Primary Science
Email: Madeline_Chang@moe.gov.sg

Character and Citizenship Education Master Teachers

A smiling woman with short dark hair, thin-framed glasses, and a dark top with a necklace.

Mdm Brenda Lee Chew Yan
Master Teacher / Character and Citizenship Education
Email: Brenda_Lee@moe.gov.sg

A smiling man with short hair wearing a dark Pepe Jeans London jacket with Infiniti branding.

Mr Osman Abdullah
Master Teacher / Character and Citizenship Education
Email: Osman_Abdullah@moe.gov.sg

A middle-aged woman with short brown hair, round glasses, and a gold necklace, wearing a dark top, smiling softly.

Miss Judy Ng
Master Teacher / Character and Citizenship Education
Email: Judy_Ng@moe.gov.sg

Educational Support Master Teachers

A woman wearing a dark green hijab and glasses, smiling, dressed in a white floral top.

Mdm Hadzar Binte Misiri
Master Teacher / Educational Support
Email: hadzar_misiri@moe.gov.sg

A smiling man with short dark hair and glasses wearing a light blue collared shirt against a white background.

Dr Muhammad Nazir Amir
Master Teacher / Educational Support
Email: Muhammad_Nazir_Amir@moe.gov.sg

A smiling man in a striped shirt holds an open book in front of shelves filled with colorful books.

Mr Tan Cher Chong
Master Teacher / Educational Support
Email: Tan_Cher_Chong@moe.gov.sg

A smiling woman with short dark bob hair wearing a black top, photographed against a light gray background.

Ms Koh Seok Hwee
Master Teacher / Educational Support
Email: Koh_Seok_Hwee@moe.gov.sg

Nutrition and Food Science/Food and Consumer Education Master Teachers

A smiling woman with glasses, long dark hair, a pink sleeveless top, and a silver cross necklace on a white background.

Ms Ang Lay Kheng
Master Teacher / Nutrition and Food Science
Email: ang_lay_kheng@moe.gov.sg

A smiling woman with dark shoulder-length hair wearing a light blue denim shirt against a white background.

Mdm Paul Lily Jebamony
Master Teacher / Food and Consumer Education
Email: Paul_Lily_JEBAMONY@moe.gov.sg

Special Needs Master Teachers

A woman with straight dark hair wearing a floral patterned top, posed against a blue gradient background.

Ms Sarinajit Kaur
Master Teacher / Special Educational Needs
Email: Sarinajit_Kaur@moe.gov.sg

A smiling woman with a dark bob haircut wearing a navy top, posed in front of a blurred window.

Ms Quek Sr Ling
Master Teacher / Special Educational Needs
Email: Quek_Sr_Ling@moe.gov.sg

High Ability Learners Master Teachers

A smiling woman with long dark hair wearing a navy blue top, photographed against a light gray background.

Mdm Evelyn Yeo
Master Teacher/ High Ability Learners
Email: Evelyn_YEO@moe.gov.sg

Lower Primary Learners Master Teachers

Smiling woman with long dark hair wearing an orange top and a beaded necklace against a white background.

Ms Teh Wan
Master Teacher / Lower Primary Learners
Email: Teh_Wan@moe.gov.sg

Smiling woman with short dark hair wearing a black polo shirt against a light background.

Ms Low Lai Fong Karen
Master Teacher / Lower Primary Learners
Email: Low_Lai_Fong@moe.gov.sg