For most of human existence our ancestors led precarious lives as scavengers, …
For most of human existence our ancestors led precarious lives as scavengers, hunters, and gatherers, and there were fewer than 10 million human beings on Earth at any one time. Today, many cities have more than 10 million inhabitants each, and populations continue to skyrocket. In this interactive presentation from Nova, students can trace the dramatic growth of human populations over recent centuries on our global map, and see where on Earth as many as three billion more people may live by 2050.
In this clip from the documentary "The Bomb," students will learn about …
In this clip from the documentary "The Bomb," students will learn about the start of the nuclear arms race between the United States and the Soviet Union when President Truman decided to build the H-bomb.
Lesson plan using a Cyberchase activity where students learn about two-dimensional and …
Lesson plan using a Cyberchase activity where students learn about two-dimensional and three-dimensional shapes. Students watch a video clip and then identify the shapes that they see in the clip. In Assessment A, students are asked to identify shapes. In Assessment B, they have the opportunity to create a three-dimensional shape from a cutout.
This resource supports the English language development of English language learners.This animation …
This resource supports the English language development of English language learners.This animation from NASA illustrates the steps of the water cycle. Through the processes of condensation, precipitation, infiltration, runoff, transpiration, and evaporation, water continuously travels from the atmosphere to the ground and back again. The animation is available with an audio description- click on the right.
In this video segment from Cyberchase, the CyberSquad is trying to escape …
In this video segment from Cyberchase, the CyberSquad is trying to escape from a desert island by crossing a large body of water. They find a special lily pad that was left for them by the Red Warrior. When the lily pad is put in water it doubles and the number of lily pads keeps on doubling. The CyberSquad tries to use this doubling effect to help them create a lily pad bridge to cross the water and escape. Teaching tips are also provided that discuss frame, focus and follow-up suggestions for using this video in a math lesson.
In this video segment from Cyberchase, Bianca helps her friend make rock …
In this video segment from Cyberchase, Bianca helps her friend make rock candy and discovers some interesting shapes. They also visit The Museum of and look at a variety of rocks and minerals, identifying and describing the many 2-D and 3-D shapes that are found in these specimens. Teaching tips are also provided that discuss frame, focus and follow-up suggestions for using this video in a math lesson.
In this video segment from Cyberchase, Bianca is getting ready to run …
In this video segment from Cyberchase, Bianca is getting ready to run in a race on a 200 meter track. She notices that the starting positions in the six lanes are at different points along the track. She believes this is unfair and sets out to measure the distance between the starting point and the finish line in both the outside and the inside lanes. Teaching tips are also provided that discuss frame, focus and follow-up suggestions for using this video in a math lesson.
In this lesson, students will learn about different Muslim women and how …
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.
In this clip from the documentary "The Bomb," students will learn about …
In this clip from the documentary "The Bomb," students will learn about the nuclear arms race between the United States and the Soviet Union and how President Eisenhower believed that using deterrence, or stockpiling more nuclear weapons than could ever be needed, was the best policy for protecting America.
In this lesson resource from Frontline's program, Obama's Deal, students will explore …
In this lesson resource from Frontline's program, Obama's Deal, students will explore how Obama's negotiations with lobbyists and member of Congress helped shape the Affordable Care Act.
This interactive periodic table shows the relationships among the elements and illustrates …
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.
In this clip from NOVA, students will view Flint, Michigan resident LeeAnne …
In this clip from NOVA, students will view Flint, Michigan resident LeeAnne Walters, who helped identify and address the lead water crisis and escalate the issue to the federal level.
In this clip from NOVA, students will learn what consequences government inaction, …
In this clip from NOVA, students will learn what consequences government inaction, faulty scientific findings, and industry influence can have on the public welfare.
Lesson plan where students are asked to consider how to draw a …
Lesson plan where students are asked to consider how to draw a perfect circle, and learn to do so using a line segment called a radius. They also learn to fold a circle in two directions symmetrically to find its center. This activity is motivated by a CYBERCHASE episode in which the CyberSquad set out to rescue a magic ring from Hacker and deposit it in a safe place.
In this clip from the documentary "The Bomb," students will learn how …
In this clip from the documentary "The Bomb," students will learn how the American public initially reacted to the atomic bomb and then how an essay on the experiences of people at Hiroshima helped change public opinion about nuclear weapons.
This brief video excerpt, from Evolution: "Why Sex?", biologist Robert Vrijenhoek discusses …
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.
Lesson plan using a Cyberchase activity, students become more familiar and proficient …
Lesson plan using a Cyberchase activity, students become more familiar and proficient at metric unit measurement by examining measurement and predictions concerning indoor tracks (200 m) and outdoor tracks (400 m). This CYBERCHASE activity is motivated by a Cyberchase For Real segment in which Bianca competes in her first track meet, but is not convinced that the staggered distances of the lanes on the indoor track are all the same distance.
In this video segment from Cyberchase, the CyberSquad is trapped in one …
In this video segment from Cyberchase, the CyberSquad is trapped in one of the Spheres of Fears, and they are trying to get through a gate to escape. The key to the gate is locked inside a can, and in order to access the key they must attach the correct label to the can. After guessing incorrectly on the first try, the CyberSquad decides to take some measurements to find the correct label. Using two circles nearby, they compare the diameter of each circle to its circumference. They realize there is a special relationship between the circumference of a circle and the length of its diameter. Teaching tips are also provided that discuss frame, focus and follow-up suggestions for using this video in a math lesson.
In this Cyberchase activity, students begin by using manipulatives to share objects …
In this Cyberchase activity, students begin by using manipulatives to share objects among different sized groups. After watching a video clip that demonstrates dealing out rounds (or sets) of objects to solve a problem, the students work on a few division problems on their own. A second video clip demonstrates how to solve such problems using numbers. With the handout, students learn to write these problems as multiplication and division facts.
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