The science curriculum has two overarching goals. First we want students
to understand inquiry as the means of scientific investigation and problem
solving. Secondly we want children to understand that scientific knowledge
is organized around fundamental principles and concepts, that it is
ever changing, and that the work of scientists is to look critically
at existing knowledge and collaborate through inquiry to continue to
expand and refine our scientific theories and knowledge.
To accomplish these goals the science curriculum is organized into two
strands. One strand teaches science through a set of content units.
The second strand teaches scientific inquiry through a carefully selected
series of units that focus on how scientists expand and refine their
knowledge.
Our content units are conceptually rich, age appropriate, and of high
interest to children. Through these units students learn how significant
scientific information is organized around important concepts. In second
grade, for example, students learn about ecosystems through a study
of ponds and oceans. Concepts such as interdependence, life cycles,
food chains, and water cycles are all explored as they study pond life
and seasonal changes. In third grade a study of rivers extends students’
knowledge of ecosystems and adds a geological component which explores
gravity, water flow, and the reasons a river valley changes over time.
In sixth grade a study of simple machines develops the scientific concepts
of work, friction and inertia, and, through a parallel study of invention,
shows how scientific ideas develop over time and the impact they have
on our society. Content units involve students in a rich set of activities:
field work, model building, experiments, museum visits, and classroom
visits by area scientists. Many of these units involve research projects
through which students learn how to effectively use a variety of reference
materials and to consolidate and extend their knowledge through presentations
and written reports.
Our inquiry units are designed to help
students understand how scientific knowledge is developed. They learn
that scientific knowledge is based on a process of asking good questions,
gathering evidence, organizing and interpreting data, and drawing conclusions.
In the first grade students work with a system of magnets. They learn
to set up “fair tests” to gather evidence relevant to their
questions or predictions about the behavior of magnets. They then examine
test results and discuss the quality of their evidence before finally
deciding if they can draw reasonable conclusions about the ways in which
magnets behave. In each succeeding year students engage in inquiry using
different systems (liquids, pendulums, ramps, propulsion, and electrical
circuits). Through guided discussions students grow in their ability
to formulate questions and to understand systems of variables, the concept
of reliable evidence, the need for multiple trials, accurate measurement,
the collection of good data, and many other features of good scientific
inquiry.
The connection between science and other academic disciplines is evident
throughout the curriculum. For example, the third grade study of rivers
focuses on the river as an ecosystem, including the relationship between
human civilization and the river. Students examine both the ways in
which a river can support an adjacent community by providing food, water,
transportation, and power; and the ways humans can influence the ecosystems
that support them. Inquiry units incorporate the mathematics of measurement
and data collection and analysis. Botany work in fifth grade extends
into the art classroom as students learn skills of representational,
scientific drawing. An exploration of the history of science builds
skills in language arts through work with biographies and other historical
documents. Through these cross-curricular connections, students come
to view science as a human endeavor that influences nearly every aspect
of their lives.