Gabe Kraljevic

Since his early childhood in Winnipeg, Canada, Gabe has loved the natural world and has dedicated his life to studying science. Recently retired after 27 years teaching high school and middle school biology, physics, chemistry, robotics and computers – Gabe always worked to infuse fun in his classrooms. He has also helped draft the Manitoba biology curriculum, stood in as the science consultant for Manitoba Ministry of Education, been heavily involved in professional development of science teachers and has received the Prime Minister’s Award for Achievement in Teaching. Currently, Gabe is the District Director of the NSTA for Canada. Living at the doorstep to the north, Gabe has also taken several opportunities to visit the impressive beauty of the Canadian arctic along the shores of Hudson Bay.




Retired from Seven Oaks School Division

Social Media

Recent Posts by Gabe

Fri Jun 28, 2019 12:56 AM in The 3R's 5E Lesson Plan
Hello Naidelyn, While all three of the Rs  are important I find that we really only concentrate recycling.  Reducing our use of resources, which in turn reduces energy consumption and waste, is the ideal first step. This involves big commitments to change our habits. For your young class I recommend that you start with awareness.  Identify and quantify the waste in your classroom.  This i...

Thu Jun 27, 2019 6:04 PM in Ocean Acidification
Hello Michael, This is likely too late for your lesson, but here goes... I find it useful to demystify why we use chemical equations. A chemical equation is simply a communication tool. It isn’t much different than using emojis to write sentences. Instead of emojis chemists use a periodic table and other standard symbols to communicate what is happening when particles of matter interact....

Thu Jun 27, 2019 5:07 PM in The Science Life of a Split Grade Level Teacher by Courtney Blaylock
Split classes can be very challenging, particularly if they have drastically different curricula. However, I believe you can manage better if your lessons use a three-dimensional approach. Instead of content topics you can structure your 5E lessons (Engage-Explore-Explain-Elaborate-Evaluate) around a cross-cutting theme, a core idea or a scientific practice common to all science curricula. What w...

Recent Reviews by Gabe

Mon May 28, 2018 8:02 AM
4 Excellent resource for STEM and engineering
I have been using this podcast for years in my design process and STEM workshops for teachers! It expertly and clearly goes through the engineering design process, explaining each step. I use this as an introduction and have even copied their use of symbols for each step to create handouts to students as they go through the steps (see my collections). If I could have put 4.5 stars I would have. My only hesitation in giving it a 5/5 is that the sound is muffled and the video quality is medium resolution - making it a bit tough to use in a group setting. All in all, a fantastic resource that I have come to rely on heavily in my pd workshops.

Recent Public Collections by Gabe

High-Altitude Balloon Projects - Easier and more exciting than you think!

12 Resources

Start a space program in your school! A collection of slide presentations, handouts, videos on how students can design, build and launch science experiments over 30 km into the atmosphere (three times higher than commercial jets) using weather balloons .

Type: User uploaded resource

Type: User uploaded resource

Slime Sampler from Molly Conway's book: "Slime Sorcery"

8 Resources

Molly Conway authored a book that highlighted many variations on slime and she sent me some sample pages. The book has 97 recipes!

Type: User uploaded resource

Type: User uploaded resource

Pop Bottle Ecosystems

7 Resources

Here are some handouts, rubrics, worksheets and an sample student journal for doing pop bottle ecosystems in your classroom. Suitable for grades 4 through 12

Type: User uploaded resource

Type: User uploaded resource