Classroom resources, professional development and networking for Ontario’s science teachers.

For public and private school teachers from JK through college and university

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Join us on April 2 for the last sessions of ExplorAItion 2.0!

Check out the schedule here:

Schedule April 2nd

Missed a session? No worries! View all of the sessions for the previous 5 evenings here!!

Join Deschool and CoLab Education for a 3-month Indigenous Education Professional Learning Community designed for K–12 educators across Canada and guided by Indigenous educator Jennie Lyn-Town.

Complete Interest Form By March 10

Check our our STAO supporters! Découvrez les partenaires de l'APSO !

Collection de ressources Leadership en STIM

Science teacher resources are just three easy steps away

Sign-up for a membership And get instant access to all our member resources you can download right away

Download classroom resources, attend our conference and get great PD

Feel confident knowing you have the resources you need for success

Featured Resources:

What are the hazards of methanoic esterfication in the SCH4U Esterfication Lab?

Categories: Questions From Teachers

Question: I had a discussion with a colleague about an SCH4U ester lab I run. Typically I make available a number of carboxylic acids and alcohols and students choose a variety of esters to try... read more

Watershed Model – 3-Day Learning Sequence (Grade 8)

Categories: General Interest, Lesson Plan

Written By Alexander Swistun, Don Galbraith Award Recipient 2025, Laurentian University In this lesson, students are expected to build, predict, simulate, discuss and reflect on watersheds.... read more

Empowering Environmental Change Makers Through Science Education (Grade 4, Grade 5)

Categories: Lesson Plan

Written by Zaynab Karimjee, Don Galbraith Award Recipient 2025, Queens University A teacher shares a shift toward hands-on, experiential learning to empower students as changemakers and global... read more

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A STAO membership is right for you if:

You are overwhelmed with teaching the curriculum in a fun and engaging way.

You want to provide a great experience for your students.

You want your students to learn and not just get the marks.

You wish to develop your Professional Development Network.

You love having great resources right at your fingertips.

JOIN NOW

As a STAO member
you will receive:

Classroom resources you can download and use right away

In addition to our free resources, STAO has curated a library of easy-to-find resources for every grade, section and topic you’ll be teaching in the classroom. Search by topic, grade or module to find the right resource for your class tomorrow or next semester.

Opportunities for professional development

Whether your learning style is online learning, participating in webinars or workshops, or attending our annual conference, STAO offers a variety of professional learning opportunities to help you be the best teacher you can be. Our professional development opportunities focus on member’s needs and are accessible online when you need them.

Great networking

Science teachers are at our best when we are able to collaborate and learn from each other. STAO holds an annual conference that brings together science teachers from all across Ontario. But more than the conference, STAO committees and volunteer opportunities provide an excellent way for science teachers to expand their network and help shape the future of teaching science in Ontario.