See how one teacher helps students set goals, track progress, and use communication standards todrive lessons in the language class focused on proficiency.Angela Wagoner, Crete High School

Students will practice and review the concepts of angle relationships. This could be used as a review tool.

This OER explores the angle relationships using inquiry-based methods. The included slideshow has multiple examples and practice problems, as well as notes for student to take. 

Find out how angles and symmetry come into play in the game of pool in this video adapted from Annenberg Learner’s Learning Math: Measurement.

This video segment from NOVA: "Animal Imposters" shows the lightning-fast strike of the anglerfish.

In plane geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle.[1] Angles formed by two rays lie in a plane, but this plane does not have to be a Euclidean plane. Angles are also formed by the intersection of two planes in Euclidean and other spaces. These are called dihedral angles

Students will learn about the Transit of Venus through reading a NASA press release and viewing a NASA eClips video that describes several ways to observe transits. Then students will study angular measurement by learning about parallax and how astronomers use this geometric effect to determine the distance to Venus during a Transit of Venus. This activity is part of the Space Math multimedia modules that integrate NASA press releases, NASA archival video, and mathematics problems targeted at specific math standards commonly encountered in middle school textbooks. The modules cover specific math topics at multiple levels of difficulty with real-world data and use the 5E instructional sequence.

Students analyze the relationship between wheel radius, linear velocity and angular velocity by using LEGO(TM) MINDSTORMS(TM) NXT robots. Given various robots with different wheel sizes and fixed motor speeds, they predict which has the fastest linear velocity. Then student teams collect and graph data to analyze the relationships between wheel size and linear velocity and find the angular velocity of the robot given its motor speed. Students explore other ways to increase linear velocity by changing motor speeds, and discuss and evaluate the optimal wheel size and desired linear velocities on vehicles.

This lesson offers learners the opportunity to understand the importance of nutrition in the livestock industry and the differences between species in terms of anatomy, physiology, and nutrient requirements and/or deficiencies. This represents a portion of the Introduction to Agriculture, Food, and Natural Resources (AFNR) series in Nebraska middle and high school agricultural education.  

Animal welfare has been described as a complex, multi-faceted public policy issue which includes important scientific, ethical, and other dimensions. Improving our understanding of animal welfare, involves the fascinating study of animal behavior as well as the challenge of accessing the emotions of animals.

This is the On-Demand version of this course, which means you can start the course at any time and work through the course materials at your own pace. The materials and quizzes will always be available to you.

You can come and talk about the course on Twitter using the hashtag #EdAniWelf

Meiosis is important in assuring genetic diversity in sexual reproduction. Use this interactive animation to follow Meiosis I (reduction division) and Meiosis II in a continuous sequence or stop at any stage and review critical events.

This animation demonstrates the stages of mitosis in an animal cell. Use the control buttons in the upper left to run the complete animation. Click on any intermediate stage (for example, Anaphase), and see a representative still frame.

Try your hand at assembling the following animal cell jigsaw puzzle created with an image from CELLS alive! This puzzle is 32 pieces and generally takes a few minutes to solve. Have fun!

How do animals communicate in the environment? And how does this affect their behaviour? Learn about animal communication in this GCSE / K12 Ecology video from the Virtual School.

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This video is distributed under a Creative Commons License:

Attribution-NonCommercial-NoDerivs

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This site is a searchable encyclopedia of thousands of photos, descriptions, sound recordings, and other information about individual animal species. Find out about amphibians, arthropods, birds, fishes, insects, mammals, mollusks, reptiles, and sharks. Explore special features on mammals, skulls, and frog calls. Students are invited to contribute.

This lesson presents an overview of the role of genetics, breeding, and reproduction in animal agriculture. Learners will become familiar with fundamentals of genetics, complete a Punnett square, understand phenotypes and genotypes, identify parts of reproductive systems, and discuss breeding systems used in the animal industry. This represents a portion of the Introduction to Agriculture, Food, and Natural Resources (AFNR) series in Nebraska middle and high school agricultural education.

Supporting inquiry-based research projects, the Animal Inquiry interactive invites elementary students to explore animal facts and habitats using writing prompts to guide and record their findings.

Are animals intelligent? What is intelligence? How can you tell, whether animals are intelligent?