In this interactive, use logic to solve three riddles involving a jumping wallaby competition. Then, using knowledge of inequalities and rational numbers, place the wallabies on the correct range from –5 to 5 on the number line. Numbers are randomized so that the range on the number line is different each time the riddles appear. The accompanying classroom activity includes a concept review and response sheets to support the online work.

In this interactive, use logic to solve riddles involving a wallaby jumping contest. Then, place each contestant’s jump—a fraction, mixed number, or decimal between –5 and +5—at the correct point on the number line. Backward jumps are represented by negative numbers and forward jumps by positive numbers. Numbers are randomized so that riddles can be solved and wallabies placed on the number line multiple times. The accompanying classroom activity includes a fraction/decimal concept review and a response sheet to accompany the online work.

In this interactive, learn about wildfires in the western US using an interactive map profiling active fires and graphs depicting historical data. In the accompanying classroom activity, students review aggregated data for 11 western states and then focus on data from a single state, describing the shape of the data and comparing changes across decades. To get the most out of this activity, students should be comfortable calculating mean and be familiar with percent.

In this interactive, students explore the Bay Area's major public transit lines and the dramatic income disparities that exist among the communities living along those routes in this infographic from KQED. In the accompanying classroom activity, students interpret the data and calculate the mean, median, and range for a given transit line.

Students develop and present an evidence-based argument about a change they would like to bring about at their school to make it a healthier place for all students. In this interactive lesson designed for both full-class and individual or small-group work, students examine a similar effort, chronicled in BASIC BLACK: Youth Fighting Fat, in which a group of concerned Boston teens seeks to address the problem of obesity in their community.

In this video, students will learn that the word "cool" has a variety of meanings.

In this lesson, students will learn about different Muslim women and how they have changed over time. This lesson includes the research of a specific woman from different eras in Islamic history.

This NOVA episode tells the story of Dr. Judah Folkman and his 40-year quest to pioneer a novel form of cancer treatment based on his discovery of angiogenesis.

With this resource, NOVA chronicles the history of the Human Genome Project. This two-hour special, hosted by ABC "Nightline" correspondent Robert Krulwich, chronicles the fiercely competitive race to capture one of the biggest scientific prizes ever: the complete letter-by-letter sequence of genetic information that defines human life—the human genome. NOVA: Cracking the Code of Life tells the story of the success of the Human Genome Project and its profound implications for medicine and human health.

This NOVA episode examines new forensic techniques such as virtual autopsies, 3-D fingerprints, and digital crime scenes that are making crime solving into a more precise science.

This NOVA episode examines the return of diseases that were largely eradicated in the United States a generation ago. It takes viewers around the world to track epidemics, explore the science behind vaccinations, hear from parents with vaccine-related questions, and shed light on the risks of opting out.

This NOVA episode investigates how nature's most potent toxins might also contain the keys to a new generation of advanced drugs. Such drugs might help doctors treat heart attacks, cancer, diabetes, and other serious illnesses.

In this lesson, students are introduced to the theory of plate tectonics and explore how the theory was developed and supported by evidence. Through class discussion, videos, and activities, students seek connections between tectonic activity and geologic features and investigate how the theory of plate tectonics evolved.

Learn how weather is the combination of four factors—temperature, wind, precipitation, and sunlight and clouds—that occur at a given place and time in this lesson plan from WGBH. The mix of factors is changing all the time; therefore, weather conditions are changing all the time. Students can observe the four factors in various types of weather and identify evidence of weather factors in different weather conditions.

This resource was developed through WGBH’s Bringing the Universe to America’s Classrooms project, in collaboration with NASA.

This interactive periodic table shows the relationships among the elements and illustrates the electron configurations responsible for each element's chemical properties. In the "Mystery Elements" section, students identify and place unknown elements in their correct location on the table, based on their physical and reactive characteristics.

This video with attached support materials focuses on using what you know about place value to determine what value each of the three digits represents.

This brief video excerpt, from Evolution: "Why Sex?", biologist Robert Vrijenhoek discusses the Red Queen hypothesis through the example of the Mexican Poeciliid fish. Vrijenhoek has been studying the Mexican Poeciliid fish for more than 30 years. Some species of Poeciliopsis reproduce sexually while others reproduce asexually. Vrijenhoek found that the genetic diversity produced by sexual reproduction allowed the sexual fish to survive a parasite more successfully than the asexual fish. Invoking the Red Queen hypothesis, Vrijenhoek suggests the sexual populations are able to keep up or adapt to new selective challenges, while the asexual populations, essentially clonal, are not. Supplemental resources, including a background essay and discussion questions, are also provided.

In this STEM lesson, students explore the properties of air and wind to understand that air can move things. Through two extension activities, students will then apply what they have learned to design and build a runway race game and/or a tinfoil boat that use air for movement.

In this lesson, students are introduced to the properties of light and shadow through experimentation and play.

This resource challenges students interested in engineering to investigate skyscraper emergencies and figure out how to fix them. They can stop by the Skyscraper Basics page for assistance, a link is provided.