Mississippi Science L.K.2.2
The Standard
- L.K.2
- Students will demonstrate an understanding of how living things change in form as they go through the general stages of a life cycle.
Construct explanations using observations to describe and model the life cycle (birth, growth, adulthood, death) of a familiar mammal (e.g., dog, squirrel, rabbit, deer).
2026 Mississippi College- and Career-Readiness Standards for Science · Reproduction and Heredity
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students use observations to describe how a familiar mammal changes from birth to growth, adulthood, and death. They put the stages in order and show that an adult can have young that begin their own lives.
What Mastery Looks Like
- A student puts newborn puppy, growing puppy, adult dog, and death cards in order. They point to a change between photos of the same dog and explain that an adult dog can have puppies.
Common Misconceptions
- Some students think a dog becomes a puppy again after it dies. Others think a puppy and an adult dog are different kinds of animals.
How to Assess It
- Give students four dog life cycle cards to order. Ask them to point to a change they can see between the puppy and adult photos, then tell you where a new puppy fits.
Lesson moves
Ways to Teach It
Give pairs clay to make a newborn puppy, growing puppy, and adult dog, then add a card that says the dog dies.
Show photos of one dog as a puppy and adult; ask, 'What changed, and what in the photos shows you?'
Play Life Cycle Mix-Up: teams order four dog stage cards and explain how a new puppy begins its own life.
Show puppy and adult dog adoption photos; ask which dog will grow more and what clues help them decide.
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Printable L.K.2.2 Worksheet
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- L.4.2.1
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- L.K.3A.2
Construct explanations using observations to describe and report what animals need to live and grow (food, water, shelter, and space).
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