Key Ideas
Level 1

• Humans have bigger brains than other animals.
• Hands can do very detailed and careful work.
• Humans can speak and share ideas with language.
• Walking on two legs helps humans carry things and see far.

Level 2

• Humans are defined by a combination of traits: large brain size, highly dexterous hands, and complex language potential.
• Bipedalism (walking upright) freed hands for tool use, carrying objects, and social interaction.
• Early hominins, such as Australopithecus, show the beginnings of these defining traits.
• Human evolution is a branching process; these traits developed gradually over millions of years.

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
Dexterity & Bipedalism Challenge

Materials

• Small objects: blocks, pom-poms, buttons, coins, or beads
• Cups or bowls for sorting/collecting objects
• Stopwatch or timer (optional)
• Masking tape or chalk to mark a walking path
• Optional: string or ribbon to simulate carrying a “load”

Timeline Entries
c. 4 million–2 million years ago
What Makes a Human?
Early hominins like Australopithecus walked upright and had hands capable of detailed work. Over time, the combination of large brains, dexterous hands, and the potential for language set humans apart from other animals, beginning the story of human evolution.


Discussion Questions
Level 1

1. What is different about human brains?
   Sample answer: Human brains are bigger and help us think and solve problems.
2. Why are hands important for humans?
   Sample answer: They let us grab, hold, and make things.
3. What does walking on two legs help humans do?
   Sample answer: Carry food, tools, or babies and see far away.
4. How do humans talk and share ideas?
   Sample answer: We use words, sounds, and gestures to communicate.

Level 2 

1. Why is bipedalism considered an important human trait
   Sample answer: Walking upright freed our hands for tool use and carrying, and allowed us to see over tall grasses and detect danger.
2. How do large brains help humans survive and adapt?
   Sample answer: Bigger brains allow problem-solving, planning, communication, and cultural learning.
3. Why is dexterous hand function important in human evolution?
   Sample answer: It enabled precision grip, tool making, and manipulation of objects in complex ways.
4. How do early hominins show the beginnings of human traits
   Sample answer: Fossils show upright walking, small brain growth, and hand bones that could grasp, which were foundations for later human abilities.