About Us

Gretel Sia is a math instructor at Honolulu Community College. She has taught a wide range of courses including college algebra, statistics, precalculus, and applied calculus. Her experience teaching math spans more than 30 years. She also has a background in law having practiced law in the Philippines and having earned her Masters of Law degree from the University of Hawaii at Manoa. She is interested in student success and the conceptual approach of teaching mathematics.

This position is currently vacant.

Michael is a National Board Certified Teacher who has been teaching at Kalani High School for more than twenty-five years where he has taught classes ranging from General Math to Advanced Placement Calculus, and continues to serve as Department Head, Oahu Mathematics League team coach, and National Honor Society advisor. He is currently a member of NCTM as well as the Mathematical Association of America, American Mathematical Society, and Society for Industrial and Applied Mathematics. He has also served as secretary and treasurer for his church’s parish vestry and is honored to have the privilege of supporting his colleagues and fellow educators through an organization which we can truly call our own, and through which we have the potential to improve not only the lives of our students, but the dignity of our profession and the stature of the mathematical sciences as well. He is also the 2022 State Teacher of the Year.

Jody-Lynn teaches mathematics at Windward Community College, and have served as HCTM Secretary for the past four years. As an HCTM member she has taken full advantage of the professional development opportunities provided and is honored to continue to serve this wonderful organization in its continued support of Hawaii’s educators.

This position is currently vacant.

Katy (as she likes to be known as) is currently the 8th Grade Math Teacher and Department Head at Jarrett Middle School. With over 8 years of experience working for the DOE she believes in a hands-on project based Debate Math approach with the student including teaching "in the wild" outdoors and utilizing technology to enhance learning. Katy also represents her staff as the head faculty rep for HSTA. Currently, she is working on her National Board Certification in Middle Level Mathematics and writing her Dissertation in Educational Technology and enhancing mathematical teaching practices for SPED and ELL students. Previously, she worked at Roosevelt High School as a freshman Algebra I teacher. Katy has been a member of NCTM and HCTM for many years and hopes to contribute anyway she can this year to continue building a stronger math community!

This position is currently vacant.

Michael is a National Board Certified Teacher who has been teaching at Kalani High School for more than twenty-five years where he has taught classes ranging from General Math to Advanced Placement Calculus, and continues to serve as Department Head, Oahu Mathematics League team coach, and National Honor Society advisor. He is currently a member of NCTM as well as the Mathematical Association of America, American Mathematical Society, and Society for Industrial and Applied Mathematics. He has also served as secretary and treasurer for his church’s parish vestry and is honored to have the privilege of supporting his colleagues and fellow educators through an organization which we can truly call our own, and through which we have the potential to improve not only the lives of our students, but the dignity of our profession and the stature of the mathematical sciences as well. He is also the 2022 State Teacher of the Year.

Katy (as she likes to be known as) is currently the 8th Grade Math Teacher and Department Head at Jarrett Middle School. With over 8 years of experience working for the DOE she believes in a hands-on project based Debate Math approach with the student including teaching "in the wild" outdoors and utilizing technology to enhance learning. Katy also represents her staff as the head faculty rep for HSTA. Currently, she is working on her National Board Certification in Middle Level Mathematics and writing her Dissertation in Educational Technology and enhancing mathematical teaching practices for SPED and ELL students. Previously, she worked at Roosevelt High School as a freshman Algebra I teacher. Katy has been a member of NCTM and HCTM for many years and hopes to contribute anyway she can this year to continue building a stronger math community!

Keith Ishihara has been teaching in Hawai‘i public schools as a Secondary Education Mathematics teacher for almost three decades. He has been a middle school Broadcasting, Media Production, and Yearbook teacher. He was formerly the Middle School Director for Hawaii Council of Teachers of Mathematics.

This position is currently vacant.

This position is currently vacant.