Mississippi Science L.K.2.3
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.
With teacher guidance, conduct a structured investigation to observe and measure (comparison of lengths) the changes in various individuals of a single plant species from seed germination to adult plants. Record observations using drawing or writing.
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 follow several bean plants from seed to flowering plant. With help, they compare stem lengths over time and draw or write what they see.
What Mastery Looks Like
- A student keeps dated drawings of each plant as it sprouts, grows leaves, and flowers. They measure stems with the same size cubes, starting at the soil, and tell which plant is longer.
Common Misconceptions
- Children may expect every seed to sprout on the same day or grow at the same pace. They may compare a leaf on one plant with the stem on another, or start measuring at different points.
How to Assess It
- Give students dated photos of two bean plants at seed, sprout, and flowering stages, with final stem lengths marked in cubes. Ask them to draw one change and circle the plant with the longer final stem.
Lesson moves
Ways to Teach It
Plant three bush bean seeds in separate labeled pots; each week, measure stems with linking cubes and draw changes until flowers appear.
Put three dated drawings of one bean plant in order, then ask, "How did its stem and leaves change?"
Give pairs labeled photo cards of three bean plants at seed, sprout, and flowering stages; sort each plant's cards in time order.
Open a grocery-store green bean pod beside a photo of a mature bean plant; have children draw where the pod and seeds grow.
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