Grizzly Energy Budget (A Math + Ecology Combo)
Grizzlies are perfect for an “energy budget” lesson because their whole life is about gaining enough calories to survive winter and reproduce.
Fish & rivers- Print & go
Grizzlies are perfect for an “energy budget” lesson because their whole life is about gaining enough calories to survive winter and reproduce.
Activity idea
Give student groups a “season card” and an “energy goal.”
- Goal: build 100 energy points before winter
- Food cards: berries, insects, roots, small mammals, scavenged meat, fish (depending on region)
- Each food type has a different energy value + time cost + risk cost
- Which foods are worth the effort?
- How does habitat change the menu?
- What happens when humans accidentally provide food (garbage, pet food, unsecured attractants)?
- How does that shift bear behavior and risk?
Students will discover the big truth on their own:
the easiest calories are often the most dangerous calories.
Questions to ask
- Which foods are worth the effort?
- How does habitat change the menu?
- What happens when humans accidentally provide food (garbage, pet food, unsecured attractants)?
- How does that shift bear behavior and risk?
Where it comes from
In the American imagination, the grizzly isn’t just a bear.
It’s weather.
It’s the sound a forest makes when something big is moving through it. It’s claw marks on a tree that feel like a sentence you’re not supposed to read out loud. And it’s a reminder that the wild isn’t a theme, it’s a living system with teeth, rules, and real consequences.
Read the blog post ↗ Grizzly Bears in America: The Power Animal That Still Shapes the Map · 2026-01-28
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Answers to the questions
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