![]() Activity Materials for Students
|
Science THE INTERDEPENDENCE OF ORGANISMS -The atoms and
molecules on the earth cycle among the living and nonliving components of the
biosphere. -Energy flows
through ecosystems in one direction, from photosynthetic organisms to herbivores
to carnivores and decomposers -Organisms both
cooperate and compete in ecosystems. The interrelationships and
interdependencies of these organisms may generate ecosystems that are stable for
hundreds or thousands of years. -Living
organisms have the capacity to produce populations of infinite size, but
environments and resources are finite. This fundamental tension has profound
effects on the interactions between organisms. -Human beings
live within the world's ecosystems. Increasingly, humans modify ecosystems as a
result of population growth, technology, and consumption. Human destruction of
habitats through direct harvesting, pollution, atmospheric changes, and other
factors is threatening current global stability, and if not addressed,
ecosystems will be irreversibly affected. MATTER, ENERGY, AND ORGANIZATION IN LIVING SYSTEMS -The complexity
and organization of organisms accommodates the need for obtaining, transforming,
transporting, releasing, and eliminating the matter and energy used to sustain
the organism. -The
distribution and abundance of organisms and populations in ecosystems are
limited by the availability of matter and energy and the ability of the
ecosystem to recycle materials. -As matter and
energy flows through different levels of organization of living systems--cells,
organs, organisms, communities--and between living systems and the physical
environment, chemical elements are recombined in different ways. Each
recombination results in storage and dissipation of energy into the environment
as heat. Matter and energy are conserved in each change NATURAL RESOURCES -Human
populations use resources in the environment in order to maintain and improve
their existence. Natural resources have been and will continue to be used to
maintain human populations. -The
earth does not have infinite resources; increasing human consumption places
severe stress on the natural processes that renew some resources and it depletes
those resources that cannot be renewed. -Humans use
many natural systems as resources. Natural systems have the capacity to reuse
waste, but that capacity is limited. Natural systems can change to an extent
that exceeds the limits of organisms to adapt naturally or humans to adapt
technologically. ENVIRONMENTAL QUALITY -Natural
ecosystems provide an array of basic processes that affect humans. Those
processes include maintenance of the quality of the atmosphere, generation of
soils, control of the hydrologic cycle, disposal of wastes, and recycling of
nutrients. Humans are changing many of these basic processes, and the changes
may be detrimental to humans. -Materials from
human societies affect both physical and chemical cycles of the earth. -Many factors influence environmental quality. Factors that students might investigate include population growth, resource use, population distribution, over consumption, the capacity of technology to solve problems, poverty, the role of economic, political, and religious views, and different ways humans view the earth. National Science Standards were taken from: http://www.nap.edu/html/nses/html/
Mathematics Formulate Questions that can be
addressed with data and collect, organize, and display relevant data to answer
them -understand the
differences among various kinds of studies and which types of inferences can
legitimately be drawn from each -understand the
meaning of measurement data and categorical data, of univariate and bivariate
data, and of the term variable Use Visualization,
spatial reasoning, and geometric modeling to solve problems -use geometric models to gain insights into, and answer questions in,
other areas of mathematics; -use geometric ideas to solve problems in, and gain insights into, other
disciplines and other areas of interest such as art and architecture
Understand
Measurable Attributes
of objects and the units, systems, and processes of measurement http://standards.nctm.org/document/chapter7/index.htm
| ||
|
by the National Science FoundationOpinions expressed are those of the authorsand not necessarily those of the National Science Foundation. |
|