What if a coordinate plane becomes a slope-intercept plane? What does the graph of a linear function look like? Learners explore these questions by graphing the y-intercept of a linear equation as a function of its slope. The result is a...

Learners set up and conduct a scientific experiment to demonstrate data collection. In this scientific process lesson, students complete an activity with the specific objective of using a slingshot to fire a t-shirt into the crowd at a...

If both pairs of opposite sides of a quadrilateral are congruent, is the quadrilateral a parallelogram? This task asks learners to determine the answer and to support their answer with a proof. The resource includes a commentary for...

Students work in teams to use the scientific method to separate complex mixtures into pure components.

Students make observations and describe the filter-feeding in sponges as it relates to the ecological role of sponges on coral reefs. In this filter-feeding in reef sponges lesson, students are introduced to the feeding methods of...

Students develop a method to separate different types of mixtures. In this chemistry lesson, students model the steps in the scientific method. They perform the experiment and analyze data.

Students are given a two week period to put to use the knowledge they have gained while studying bacteria. As a culminating activity, students each receive three unknown bacteria to identify.

Learners explore disease caused by bacteria and viruses, how they are transmitted, and how they exert their effects on their hosts. They explain how diseases, such as AIDS, are spread by exponential growth.

Fifth graders characterize insects and classify insects according to the Linnaean system. They use hand lenses or microscopes to examine insect body parts.

Students create a video of an object falling with a drag. In this physics lesson, students calculate drag coefficient using data from Logger Pro. They calculate velocity and acceleration of the object.

Students investigate the role of sponges in our oceans.  In this biology lesson, students create a diagram visualizing how sponges bring food into their bodies through a filtering process.  Students discuss the connections...

Students conduct a variety of experiments to explore gel electrophoresis. In this biology lesson, explain how this process separate DNA and RNA. They discuss the practical applications of this method.

Students examine the reasons why metal corrodes in regard to metal artifacts. In groups, they discover the affects of salt water on metal and compare the type of corrosion found on iron. They also research the types of metal...

Students make observations about trees. For this ecosystem lesson, students observe and record all living and non living things they find under a tree, look for birds nests, evidence of woodpeckers and take samples such as leafs, bark,...

Students explore various tree species. In this tree species lesson, students collect leaves on nature walks and use Internet sources to identify the trees that the leaves belong to. Students graph their data as well.

Students calculate the moment of inertia of a disc. In this physics lesson, students differentiate the two methods used in finding the inertia. They construct their own pendulum for the lab.

Students create a blue-green patina that serves as a protective coating on copper jewelry or other artwork. Using four different experimental methods, students apply patina to copper pieces and compare the results of the different...

Students are introduced to Delaware's waterways as precious resources used for drinking water, water for agricultural and industrial uses, recreational areas, and as habitats for wildlife. They are introduced to wastewater discharges,...