Curriculum Connections
Sparking Science Inquiry, Meeting Standards
This section offers some ideas
for planning hydroponics experiences to help students explore
key concepts and generate their own investigations. How you
begin to study hydroponic gardening with your students depends
on your own philosophy, your curriculum objectives, and the
developmental levels of your students. You may wish to have
one large hydroponics setup in your classroom to which each
child contributes ideas and materials. Or you may ask small
groups or individuals to choose a design or invent their own
setup based on their understanding of plant needs and hydroponics.
Hydroponics projects can support these different learning
styles and provide an opportunity for students to appreciate
one another's differences. Consider establishing small cooperative
groups of two to four students, while still allowing students
to work alone for short periods of time. Make reference materials
available in your classroom or in the school library. Create
a climate in which students share their discoveries with the
class. Invite final reports and creative presentations. Challenge
students to pursue their own questions and establish a knowledge
base through active investigation.
Cultivating
Inquirers
As students work with hydroponics setups and concepts, their
experiences and observations are likely to spark a variety
of questions they can actively investigate through observations,
experiments, or additional research.
As
students conduct and begin to make meaning from their investigations,
it's important to help them reflect on their experimental
setups. Encourage them to review and critique their own and
others' science process by asking questions, in journals and
in group discussions or reviews: Was this a fair test?
What other variables besides those we tested could have influenced
our results? How could we revise this experiment if we were
to do it again?
Consider ways to help students make connections between their
classroom experiences and broader concepts and issues in science
and technology (raising food in space, for instance). Communicating
with others can help them make these connections. For example,
they might write a series of directions or produce visual
or dramatic displays to demonstrate their understanding of
an aspect of hydroponics. Involving a real audience such as
parents and other community members can serve as a powerful
learning tool, good public relations, and a way for you to
assess what your students have learned. Hydroponics units
may spark an interest in learning more about the real-life
and potential applications of hydroponic technology, as well
as its limitations. Keep an eye on local supermarkets for
hydroponically grown vegetables, and look for hydroponic facilities
to visit at commercial or public greenhouses and nurseries.
The Classroom Stories
in this guide reveal how other classrooms have branched out
with hydroponics.
Addressing
Science Standards
As with any unit, it's important to identify what you hope
students will gain from the activities and investigations,
recognizing that a range of unintended outcomes will also
emerge as students explore based on their own interests. Following
are just a few of the National Science Education Standards-related
concepts and skills that you might address in a hydroponics
unit.