Key Ideas
Level 1

• Dinosaurs appeared after a time when many animals had gone extinct.
• Early dinosaurs were small and walked on two legs.
• Early mammals lived at the same time as dinosaurs, but they were tiny.
• All the continents were joined together into one big landmass.
• Hot, dry climates helped certain animals survive better than others.

Level 2

• Dinosaurs evolved after the mass extinction at the end of the Permian, which removed many competitors.
• Upright posture and efficient movement helped early dinosaurs conserve energy and travel farther.
• Early mammals existed alongside dinosaurs but filled small, mostly nocturnal ecological niches.
• The supercontinent Pangaea allowed animals and plants to spread widely across Earth.
• Environmental instability favored adaptable animals, giving dinosaurs an advantage.

Schedule

Day One	Day Two	Day Three	Day Four
Main Lesson and/or Story	Spine Reading	Literature Extension	Extension Videos or Books
Hands On Activity	Art Extension		Try something for "Other Activities"
Narration Page or Coloring Page	Notetaking Extension	ELA: Sentence Expansion	ELA Page: Choose Another One

Hands-On Activity
Moving like a Reptile vs. Dinosaur

Materials

• Open floor space
• Optional: stopwatch or timer

Timeline Entries
c. 252–201 million years ago
Triassic Period (Worldwide)
The Triassic Period begins after a massive extinction, and the first dinosaurs and early mammals appear on Earth while all continents are joined together as Pangaea.


Discussion Questions
Level 1

1. What happened before dinosaurs appeared?
   Sample answer: Many animals died out, leaving fewer animals alive on Earth.
2. Were dinosaurs big and scary right away?
   Sample answer: No, the first dinosaurs were small and fast.
3. Did mammals exist during the Triassic Period?
   Sample answer: Yes, but they were very small.
4. What was special about Earth’s land during this time?
   Sample answer: All the land was connected as one big continent.

Level 2 

1. Why did dinosaurs succeed after the Permian extinction
   Sample answer: Many competing animals were gone, and dinosaurs had traits that helped them survive in harsh conditions.
2. How did dinosaurs’ body structure help them thrive?
   Sample answer: Their upright legs made movement more efficient and less tiring.
3. Why didn’t early mammals dominate ecosystems like dinosaurs did?
   Sample answer: Mammals were small and filled limited roles, often staying hidden or active at night.
4. How did Pangaea influence dinosaur success?
   Sample answer: With land connected, dinosaurs could spread easily and adapt to many environments.
5. What role did climate play in shaping Triassic life?
   Sample answer: Hot and dry conditions favored animals that could adapt quickly, like early dinosaurs.