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Get to know us

Sibylle Siedler

SIBYLLE SEIDLER Project Director

With a background in stakeholder management, marketing and business and as a passionate advocate of STEM, Sibylle is well equipped for the role of Project Director at Little Scientists.

With three curious little scientists of her own, a menagerie of pets, and having worked in everything from IT to aviation, this one-time aspiring vet has many years of experience in managing projects and people.

Sibylle oversees the project progress of Little Scientists and its team and is passionate about inspiring educators of future little scientists. She was an integral part of Lufthansa’s Flynet project, loves food and books and, of course, travel!

Olde Lorenzen

OLDE LORENZEN Managing Director

Olde is the Managing Director of not-for-profit FROEBEL Australia Ltd, providing bilingual early childhood education and care services, and responsible for launching Little Scientists as a professional development initiative in 2013.

He is a Renaissance man with skills and interests across the spectrum. He has a background in law, an interest in design, can multi-task and has an eye for detail while overseeing the big picture.

Olde was captivated by Lego play as a child, so his advocacy for STEM started at an early age. He is proud of Little Scientists recognition through the Australian Government’s National Innovation and Science Agenda. He enjoys leading his enthusiastic team who are committed to re-imagining the Australian early childhood education landscape.

Heike Hendershot

HEIKE HENDERSHOT National Training Manager

With an extensive background in education and a fearless passion for child-centric learning, Heike manages the development and implementation of workshop content and supports the national team of training facilitators at Little Scientists.

She is curious, a critical thinker with the admirable ability to wonder. Passionate about change, and honouring each child’s individual skills and abilities, Heike believes that children want to find out about the world and that STEM and play initiate lifelong curiosity: questions should be asked every day!

Heike also has hidden talents, she is very good at caring for the sick, even those suffering from man flu!

Rebecca McKeen

REBECCA McKEEN Relationships & Events Manager

Combining her event management skills and her professional experience as an educator, Rebecca’s unique role is her childhood dream of working in early childhood education come true.

Rebecca is the point of contact for Little Scientists’ network partners, answering just about any query, and she manages all our events and conferences.

Having worked with toddlers and created themed events, Rebecca understands the importance of patience, organisation and a sense of humour. She is a foodie with an adventurous spirit, who loves travelling and her dog Baloo.

Evan Brettoner

EVAN BRETTONER Business Development Manager

With a juggler’s playfulness, skill and exactitude and a background in refrigeration, Evan brings his cool wit, fun and flair to the role of Business Development Manager at Little Scientists.

Years of working in education, with patience, understanding, a cheeky grin and the occasional office prank or impromptu dance session, Evan is equipped to support our Local Network Partners as they start their Little Scientists journey.

Evan is also an ambassador for Gross National Happiness and sees STEM as the perfect way to instil his quest for international happiness through education.

Hayley Bates

HAYLEY BATES National Certification Coordinator

Hayley has an insatiable thirst for learning – about everything! Her sheer joy of discovery and passion for professional development makes her the perfect person to run the Little Scientist’s House Certification program.

Never happier than seeing what happens to balloons in the freezer or exploring the projects submitted by services for certification, her enthusiasm is complemented by her background in science and maths making her the ideal coordinator for our Little Scientists Houses.

Hayley has taught across continents from preschool to tertiary and in botanic gardens to sewage plants. She is a qualified butcher and yoga instructor, plays the piano and can sail a yacht.

Mary Bell

MARY BELL Training & Quality Assessor

Mary comes to Little Scientists with a passion to educate, enthuse and interpret STEM with early childhood educators.

Inspired by her mother’s trailblazing passion for science, she holds a degree in environmental science and has worked in educational roles at both the Australian Museum and Royal Botanic Gardens, where she coordinated and developed curricula for visiting students from preschool to tertiary.

Mary is never happier than when bushwalking and photographing wildlife and is passionate about recycling and repurposing. She is looking forward to creatively developing new workshop materials and empowering educators to create a fun learning environment for young children.

VANESSA STEELE Marketing & Communications Coordinator

Vanessa has had a varied career working in marketing and communications and now brings her expertise to Little Scientists.

As a highly skilled visual and verbal communicator she is excited by the passion and energy the team creates every day and the integral part she plays in the development and implementation of the Little Scientists brand.

Vanessa is a foodie, loves travelling and is an advocate for social justice. She is a tennis player and Roger Federer fan, practices laughter yoga and is at her best when exploring the great outdoors.

Kerstin Johnson

KERSTIN JOHNSON Content Editor & Resources Developer

Thank goodness Kerstin loves doing what most people find boring, she is our editor looking after all the content at Little Scientists. Her aim is to make everything as engaging and user-friendly as possible for the workshop participants and all our material consistent across platforms.

Kerstin has worked in publishing, creating digital and print educational resources and has written blog posts as well as property ads. She loves the outdoors, bushwalking being one of her favourite activities.

Always eager to learn new things and inspired by our water workshop, Kerstin and her children are currently obsessed with finding out whether objects float or not.

Alice Hamilton

ALICE HAMILTON Digital Content Producer

Alice is a proud geek, passionate food gardener and owner of an axolotl named Link.

Prior to joining Little Scientists, she worked for the Department of Education, developing websites and eLearning content. One of her proudest achievements was the development and marketing of an anti-racism educational program for teachers and students. Through her efforts, the website is now the primary anti-racism resource used by schools across Australia.

Alice loves DIY and learning new things and is passionate about instilling that love of learning in others. In her spare time, she delivers food gardening and sustainability workshops to teachers, helping them use edible gardens to support STEM projects.

Tina Gaertner

TINA GAERTNER Marketing & Events Officer

With an education in politics and pedagogy and a Masters in Adult Education, Tina brings her experience, expertise and love of graphic design to Little Scientists.

Tina’s focus is on implementing and maintaining social media channels and organising Little Scientists events and conferences. She loves using her creativity and digital expertise to contribute to changing young children’s lives, as she knows firsthand from her own two boys how much fun they have learning in an early STEM environment.

Tina is a soccer tragic who loves chocolate, an avid podcast listener and admirer of the bravura of her childhood heroine Pippi Longstocking.

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