Why Is Our Corn Changing?  [v1.0]

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TEACHER GUIDES <

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SyNOPSIS

In this second grade unit, students investigate the mystery of harvest corn, something they saw as decoration, beginning to sprout what look like leaves and roots. Disagreements about how the corn is growing spark investigations that lead students to uncovering the functions of different parts of the plant as well providing evidence for what plants need in order to grow.  The end of the unit concludes with students designing and carrying out their own unique investigations about what else plants need to grow, and the students share their findings with the class.


WHAT STUDENTS INVESTIGATE 

Each day the corn yields new surprises.  Students observe many related phenomena coming from the corn and design multiple investigations to help them uncover important pieces of the puzzle.  Each piece of the puzzle they figure out helps them incrementally develop a model to explain their anchoring phenomena and answer their original questions.  Here are just a few of these investigations...


WHAT STUDENTS FIGURE OUT

By the end of the storyline students develop important ideas related to plant growth. These ideas include: 

  • Plants need light and water to grow.
  • Plants have different parts that help them survive and grow
  • Roots help plants get water.
  • Leaves help plants get light.
  • There is something inside a seed that needs water to start growing structures that will become the plant.
  • You can plan and design investigations to answer questions about what causes things to happen that you see going on in the world around you.

DEVELOPMENT TEAM

 

IN PARTNERSHIP AND WITH SUPPORT FROM

These materials were developed in part with support from an MSP grant from the Connecticut Department of Education; with funding from the Gordon and Betty Moore Foundation to Northwestern University, and support from the NGSX Project at Clark University, Tidemark Institute, and Northwestern University.