Leadership Team

Nick Zissopoulos, Principal



Michelle Grieger, Deputy Principal/Junior School Leader


‘Mannum Community College continually focuses on improving Numeracy, Literacy and Wellbeing by supporting and encouraging a growth mindset to enable our students to do their best in all aspects of their school life’.

Welcome to Mannum Community College. Our school focus is on believing every student can achieve through a wide range of learning opportunities to fully develop their skills and capabilities. We see each and every student as unique, with their own potential – therefore it is our responsibility as educators to help them to achieve their goals.

Mannum Community College is a student-centred school, where support is provided to students as they begin to take responsibility for their own decisions, determine their own attitudes and form their own opinions as to what life is all about and the pathway they wish to follow. All students are guided and mentored to achieve academically, and grow emotionally, physically and socially in a happy and collaborative school community.

We comprise of 3 sub-schools (Junior School –  Reception to year 5, Middle School – years 6-9, Senior School – years 10-12) and Baseby Hub for years 10-12 for students who have disengaged from their learning and who need further guidance and support to return and compete their SACE. We pride ourselves on 100% SACE completion for all year 12 students.

I have over 18 years of teaching and leadership experience where I have taught many primary year levels across the Murraylands schools. Over the past 8 years I have been Assistant Principal R-5 and Deputy Principal R-12 at Mannum Community College. Outside of school I enjoy cooking, gardening, reading and bush walking with my family.

Please feel free to make an appointment with me or other members of the Leadership team to discuss the education needs of your child. Personalised tours of the school are available every school day. I am confident that Mannum Community College can assist you in the most important decision when deciding on the right education pathway for your child.

Kieran Jaensch, Senior School Senior Leader


Prior to my teaching career I completed a Diploma of Arts in Furniture Design and various trade qualifications in the Wood Working area. I then underwent a Bachelor of Education specialising in Design and Technology completing my degree in 2011. I have now been in the education system for coming up 12 years. Meningie Area School was my first short term appointment, before commencing at Heathfield High School in the Adelaide Hills where I spent 5 years teaching across a range of design and technology subject areas, managing the regional Doorways 2 Construction VET program, and leading a number of STEM initiatives. In 2017 I packed up my little family and took on the position of Senior Leader – Students Pathways in the South East, based out of Mount Gambier. This role saw me working with 11 different secondary high school sites across the South East and Tatiara regions in all things SACE, VET, student pathways and professional development for secondary education staff.

In 2018 I commenced my appointment at Mannum Community College where I have been able to draw upon all my previous experiences and knowledge across SACE, VET, STEM and student pathways as I support students through their senior schooling and onto their future career paths of choice. In my time at the school we have seen a number of changes to the school as a whole, especially the senior school. We now have new state of the art learning environments, one: one laptop device initiative, along with a great nurturing community feel to our environment. I look forward to continuing my work with MCC students, parents/ caregivers and the wider community supporting the whole school in the Deputy Principal role.

Georgia McLaren, Middle School and Years 5-12 Literacy Senior Leader


I began my teaching career at Mannum Community College where I was the Middle School Mathematics and Science teacher. During this time, I enjoyed building and strengthening my teaching capacity and leadership with my classroom. I then moved to Whyalla where I had my first formal leadership opportunity as the Numeracy Intervention Coordinator. In this role I was responsible for the implementation of the QuickSmart program for Year 7 and 8 students and classroom implementation of numeracy intervention across years 7 to 12.
During my time as the Middle School Senior Leader at Mannum Community College I am looking forward to strengthening existing relationships and building new relationships with staff to implement changes which will see positive impacts on student learning and achievement and Middle School cohesion. I am also looking forward to continuing to build relationships with all Middle School students and classes to support positive school identity and learning cultures, where student wellbeing and achievement are prioritised. I have a strong connection to all of our schools RIVER values of respect, integrity, vitality, excellence and responsibility in which I hope to build on the already strong foundation within all of the Middle School classes. In regularly visiting classrooms to observe and take part in learning, consulting with teachers to look at curriculum planning and modelling and implementing positive behaviour approaches including restorative justice, I hope to continue strengthening the positive culture at Mannum Community College during my time in this position.

Correta Odera, Wellbeing Leader


At Mannum Community College (MCC), we understand that high levels of wellbeing have the potential to bring about positive change in all members of

our school community. We know what is required to foster wellbeing, and how it can become a powerful force in students’ learning and development.

My role as Wellbeing Leader is to coordinate three levels of wellbeing support:


  • Whole school initiatives including:
    • a school-wide common language (e.g. Restorative Justice, Play is the Way Key Concepts and Self-Master Questions),
    • key curriculum areas (Keeping Safe: Child Protection Curriculum and Shine SA Relationships and Sexual Health), and
    • Special days (e.g. Harmony Day, IDAHOBIT and Grand-friends’ Day)
  • Small group programs such as Seasons for Growth, Mind Up and Student Leadership.
  • Individual, targeted interventions – usually through external mental health and allied support services.

Denise Martin, Business Manager


I lead the business and administration operation of Mannum Community College in the areas of finance, facilities and HR. This includes funding, budgets, resource management, facilities upgrades, maintenance, community use of school facilities, coordination of events and appointment of non-teaching staff. I am the site contact for outsourced services such as OSHC and cleaning. I work with the Canteen Manager, Governing Council and Canteen Committee to oversee the operation of the school canteen.

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Leadership Team