Separation of National and State Governments
The United States federal system divides power between national and state governments, both of which govern the same constituents. The powers granted to the national government in the Constitution are called delegated powers. There are three types of delegated powers: enumerated powers, implied powers, and inherent powers. (Video is narrated with slides and speeches.)
Autism & Pediatric Diseases : Different Types of Autism Presented by Dr. David Hill. There are many different types of autism, known as the autism spectrum. The main thing they have in common is that they have trouble communicating with other people. There are three levels of autism, Asperger's syndrome, difficulty communicating with others, interpreting their intentions or emotions, they tend to go on with subjects that interest them, may have a hard time getting jokes, but can live o
Presented by Dr. David Hill. There are many different types of autism, known as the autism spectrum. The main thing they have in common is that they have trouble communicating with other people. There are three levels of autism, Asperger's syndrome, difficulty communicating with others, interpreting their intentions or emotions, they tend to go on with subjects that interest them, may have a hard time getting jokes, but can live o
Middle School Studying For Your Learning Style
A series of short videos that deal with such aspects as types of learning styles and how to learn which is best for various types of learning. There are several short videos in this section. All students should watch this to get ideas on how to improve their study habits.
Volcanoes provide clues about what is going on inside Earth. Animations illustrate volcanic processes and how plate boundaries are related to volcanism. The program also surveys the various types of eruptions, craters, cones and vents, lava domes, magma, and volcanic rock. The 1980 eruption of Mount St. Helens serves as one example.
Intrusive Igneous Rocks
Most magma does not extrude onto Earth’s surface but cools slowly deep inside Earth. This magma seeps into crevices in existing rock to form intrusive igneous rocks. Experts provide a graphic illustration of this process and explain the types and textures of rocks such as granite, obsidian, and quartz. Once again, plate tectonics is shown to be involved in the process.
Anyone undertaking a building project must understand mass wasting — the downslope movement of earth under the influence of gravity. Various factors in mass wasting, including the rock’s effective strength and pore spaces, are discussed, as are different types of mass wasting such as creep, slump, and landslides. Images of an actual landslide illustrate the phenomeno
The weight of a mountain creates enough pressure to recrystallize rock, thus creating metamorphic rocks. This program outlines the recrystallization process and the types of rock it can create — from claystone and slate to schist and garnet-bearing gneiss. The relationship of metamorphic rock to plate tectonics is also covered.
Running Water I: Rivers, Erosion and Deposition
Rivers are the most common land feature on Earth and play a vital role in the sculpting of land. This program shows landscapes formed by rivers, the various types of rivers, the basic parts of a river, and how characteristics of rivers — their slope, channel, and discharge — erode and build the surrounding terrain. Aspects of flooding are also discussed.
Evolution and the Tree of Life What makes a snake a snake, and a lizard a lizard? What distinguishes one type of lizard from another? And how did so many types of reptiles come to be? Session 6 focuses on questions like these as we continue our study of the fundamentals of evolution. Building upon key ideas introduced
What makes a snake a snake, and a lizard a lizard? What distinguishes one type of lizard from another? And how did so many types of reptiles come to be? Session 6 focuses on questions like these as we continue our study of the fundamentals of evolution. Building upon key ideas introduced
Connecting With the Arts: What is Arts Integration?
This program presents three instructional models for integrating the arts: independent instruction, team-teaching, and collaborations with community resources. Participants will also explore informal, complementary, and interdependent curricular connections, and see examples of what these different types of arts-integrated instruction look like in the classroom.
How to Keep Score in Tennis
How to Keep Score in Tennis. Part of the series: How to Play Tennis. Scoring in tennis is kept by no-ad scoring and regular scoring. Both types of scoring are based on a four point system. Keep score in a tennis match with tips from a certified tennis pro in this free video on tennis.
This is an excellent slideshow (with voice narration) that explores the art of storytelling. The narrator highlights three different types of fiction templates.
Eva Vertes Looks to the Future of Medicine
Eva Vertes -- only 19 when she gave this talk -- discusses her journey toward studying medicine and her drive to understand the roots of cancer and Alzheimer’s. Eva Vertes is a microbiology prodigy. Her discovery, at age 17, of a compound that stops fruit-fly brain cells from dying was regarded as a step toward curing Alzheimer's. Run time 18:52.
Flute Vibrato with Jennifer Grim
There are 2 types of vibrato-one that comes from your throat and one that comes from your diaphragm. This video shows you how to produce both types. (1:40)
Choosing Supplies for Homeschooling
This video shows how to pick out simple homeschooling supplies for each student, which can be used for a variety of subjects. A homeschool explains how to choosing supplies for homeschooling depends on the child's areas of interest, but basic supplies include writing utensils, different types of paper, textbooks and other crafts.
Plants that Make Spores
There are ten basic divisions in the Plantae kingdom, and only 5 that are spore bearing. Spores are special cells used in asexual reproduction. Learn about the plants that make cells in this short clip. Examples and photos are provide for the mosses, liverworts, horsetails and ferns. (2:34)
Liverworts, Mosses, and Ferns
This video gives a quick overview of some different types of spore-bearing plants. Dr. Matt von Konrat explains the reproduction of liverworts, mosses, and ferns to a high school group of students. Audio is poor but information is good. Run time 07:50
Plant Reproduction: The Pine Tree
Pine trees actually produce two types of pinecones. This video addresses both the male cone and the female cone as well as their parts. Using computer generated pictures, the narrator explains the reproductive process for a pine tree. The narrator also addresses the special adaptations of the pine needle. Run time 02:41.
Data Quality: Missing Data
This module describes how missing data can be managed while maintaining data quality. It explains how to plan for missing data; defines different types of "missingness;" outlines the benefits of documenting missing data and illustrates how to document missing data; and describes procedures to minimize missing data. Upon completion of this module, students will be able to explain why data managers should strive to minimize missing data and develop a plan to record or code why data are missing.
Green Fluorescent Protein: Lighting Up Life - January 28, 2010
Martin Chalfie, chair and professor of biological sciences at Columbia University, shared the 2008 Nobel Prize in Chemistry with Osamu Shimomura and Roger Y. Tsien for the discovery and development of the green fluorescent protein (GFP). GFP has become a fundamental tool in cell biology, developmental biology, genetics, neurobiology and the medical sciences. It has permitted scientists to study damaged cells in Alzheimer’s disease, cancer, and genetic disorders. It also has many applications i