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Primary producers, or autotrophs, make up the first trophic level of all food webs. Autotrophs are organisms that produce their own energy from inorganic substances, such as carbon dioxide and water. The primary producers of many food webs are green plants.Continue Reading Only 10 percent of the energy of the first tro...
Our Sun goes through cycles of activity on average every 11 years. At the height of a cycle, the Sun is a busy place, with flares, eruptions and sunspots. At its lowest point, the Sun is quiet. That quiet period usually lasts for about 300 days, but the last solar minimum stretched for 780 days from 2008 to 2010. Scien...
Dengue remains a public health problem in most if tropical countries especially in Asia, Africa and South America despite the efforts to stop and mitigate the impact of epidemics. It is a dynamic systemic infectious disease. The infection can be asymptomatic or show with a broad clinical spectrum that includes serious ...
French Pronunciation Teacher Resources Find French Pronunciation educational lesson plans and worksheets Showing 121 - 144 of 201 resources The Teacher Directs: The Experience of Movement in Literature Experience movement in literature. High schoolers are introduced to new vocabulary related to drama and theatre. In gr...
How and why dinosaurs went extinct has been debated for a long time. Most paleontologists have settled on the asteroid impact theory. Because of the huge disruption that this space object made, the earth’s climate changed. Massive forest fires and dust clouds cooled the planet, causing everything larger than a crocodil...
1911 Encyclopædia Britannica/Thule THULE, the Greek and Roman name for the most northerly known land in the north Atlantic. The first to use the name was the Greek navigator Pytheas (about 300 B.C. probably). He calls it the most northerly of the British Isles and says that he reached it after six days' sail from Brita...
Sentences are individual statements which are able to convey complete ideas or thoughts as a self-contained unit. These can be simple sentences containing two parts - a subject (a noun or pronoun) and a predicate (a verb) or more complex structures which contain other elements such as adverbs (words used to describe no...
Alberta's soil scientists formed a Soil Classification Working Group in 1998. They organized information on the Canadian province's different soil types according to soil properties. Establishing 10 distinctive soil types within four larger soil categories, they created a map of the different soils across Alberta to he...
What is a standardized test? A standardized test is an objective test that is given and scored in a uniform manner. • Standardized tests are developed by educational testing experts. They are carefully constructed and items are selected after trials for appropriateness and difficulty, to make sure the results are accur...
Everyone has heard of the Star of Bethlehem, but nobody seems to know much about it. Was it a one-off? And why were the Magi prepared to follow it for hundreds of miles to chart its course? The Nebra Sky Disc In other words, how much did the people of the Bible know about astronomy? The answer is that they were not rea...
Children are born with the need and desire to connect with those around them. When teachers and practitioners and parents and caregivers establish positive relationships with children from birth through the early years and value their diverse cultures and languages, children feel safe and secure, laying the foundation ...
Shortness of breath is a state where you start gasping for air, need extra effort to breathe, and the air you take in is just inadequate despite your excessive effort to breathe. You will develop short and rapid breathing that will interfere with your routine or well-being. Shortness of breath varies in intensity and s...
The author of Beowulf uses literary devices such as symbolism, hyperbole, and personification to help characterize and reveal Beowulf’s identity. By his acts of courage, bravery, and arrogance, he became a great hero. In Beowulf, the author uses symbolism to reveal Beowulf’s character because when Beowulf arrived in He...
In May 1611, Sir Thomas Dale arrived in Virginia with instructions from the London Company to find a secure and healthy area to establish a new town and principal seat for the colony. In September 1611, Sir Thomas Dale moved up the James River to establish Henricus, the colony’s second settlement. By the Woodland Perio...
An aeroplane has 30 rows of seats, with each row having 6 seats. A stewardess says that the plane is 85% full on today’s flight to Spain. a) How many seats are empty on today’s flight? A one way ticket to Spain with ‘CheapyJet’ costs £210. b) How much money could the airline have made if they had sold all of the empty ...
Basics first. Children’s brain functions are still developing. There is a wide margin for what is normal and healthy. There could be distinct variations between individual children. Let’s begin to understand a variety of brain functions across several domains or dimensions. You can develop an eye for what they are, fro...
Affiliations: 6Go to article Pinpointing the processes behind precise pointing © Busakorn Pongparnit/Moment/Getty Target practice with deceptive glasses has revealed that humans learn precise movements by combining two distinct mental processes. Precise movements can be learned by repetition, but the processes by which...
Any allergy can be considered as an immune response to a foreign matter that does not have harmful effects to the body. The substances that causes allergy is called as allergens. They may be certain food items, pollens, or pet dander. The body itself has the power to fight against any harmful pathogens or foreign body....
Denisovan remains were discovered in 2008 and human evolution experts have become fascinated with the group that went extinct around 50,000 years ago. One of the biggest questions had been over their appearance, with no full sketches of the Denisovan drawn up. But now a team of researchers have produced reconstructions...
What’s Going on Inside the Brain Of A Curious Child? How does a sunset work? We love to look at them, but Jolanda Blackwell wanted her 8th graders to really think about them, to wonder and question. So Blackwell, who teaches science at Oliver Wendell Holmes Junior High in Davis, Calif., had her students watch a video o...
This Mathematics unit addresses the concept of measuring, comparing and ordering length using informal units. It consists of 5 lessons of approximately 60 minutes duration. The sequence of lessons and suggested time frames should be regarded as a guide only; teachers should pace lessons in accordance with the individua...
Americium, a silvery-white, synthetic element, is created during nuclear reactions of heavy elements. The element and its isotopes have very few but important uses including smoke detectors found in nearly all buildings and the potential to power future space missions. Americium is a highly radioactive element that can...
Black History Month is a time to learn about and celebrate all of the African-American men who have made contributions to society. America is lucky to have had so many people contribute to its greatness as these black men have. Start your Black History Month education off right by reading about six black men who have m...
Federal-style architecture is the name for the classicizing architecture built in the newly founded United States between c. 1780 and 1830, and particularly from 1785 to 1815. This style shares its name with its era, the Federalist Era. The name Federal style is also used in association with furniture design in the Uni...
To figure out where magma gathers in the earth’s crust and for how long, Vanderbilt University volcanologist Guilherme Gualda and his students traveled to their most active cluster: the Taupo Volcanic Zone of New Zealand, where some of the biggest eruptions of the last 2 million years occurred — seven in a period betwe...
How Do Silicon Solar Cells Work? The basic component of a solar cell is pure silicon, which has been used as an electrical component for decades. Silicon solar panels are often referred to as '1st generation' panels, as the silicon solar cell technology gained ground already in the 1950s. Currently, over 90% of the cur...
Autism spectrum disorder is a developmental disorder that can affect a person’s ability to communicate and relate to others. Children with autism differ from each other, so a method that works with one child may not work with another. But there are some basic guidelines when helping children with autism succeed: Use Cl...
The National Curriculum is a set of subjects and standards used by primary and secondary schools so children learn the same things. It covers what subjects are taught and the standards children should reach in each subject. Every state-funded school must offer a curriculum which is balanced and broadly based and which:...
With a dizzying array of news about plastics lately, it’s hard to figure out what options are best for handling plastic waste. A large portion of the world does not recycle plastic waste, and countries that do are struggling to make the process cost-effective enough to make sense. Much debate exists about the best way ...
Haploid is the term used when a cell has half the usual number of chromosomes. A normal eukaryotic gamete organism is composed of diploid cells, one set of chromosomes from each parent. However, after meiosis, the number of chromosomes in gametes is halved. That is the haploid condition. In humans, the diploid number o...
The term decision making means - the process of deciding about something important, especially in a group of people or in an organisation. In addition to the different procedures involved in making decisions, groups can also have different decision rules. A decision rule is the way the group makes a choice or reaches a...
Since the great ocean crossing of Columbus in 1492, Europeans had been settling in what they called the New World, at the expense of the indigenous populations. The Portuguese began this by setting up sugar plantations in Brazil and having these worked by slaves brought across from Africa. This policy was adopted by al...
Mammals in our midst; jaws faster than the blink of an eye; how birds see the world In a large-scale, four-year study, scientists from several U.S. institutions discovered that a surprising variety of wild mammals thrive near humans in two major metropolitan areas: Washington, D.C., and Raleigh, North Carolina. Working...
This GCSE Physics quiz about waves looks at reflection and refraction. Reflection occurs when any wave reaches a boundary between two different media. The amount of reflection depends on the nature of the medium that the wave is hitting. At GCSE, you will have studied this only for light waves, but what you have learnt...
Phonics Provision at Stirchley Primary School Phonics is the knowledge of how the alphabetic sounds work and how these sounds are combined to correspond to the spoken word. Our aim at Stirchley is to enable children to start learning phonic knowledge and skills by the age of five, with the expectation that they will be...
We spent this week in reading enjoying some children's literature - basic? Maybe. But serious fun. And a great way to introduce and review some important concepts that we'll need to use later in the year as we dive into novels. We covered plot maps and reviewed all of the different parts of a plot (hook, problem, risin...
Soil holds a significant number of nutrients that plants use for healthy growth. Good quality soil of the right porosity, strength and stability is important if farmers are going to get good, healthy and nutrient-rich crops. The structure must be stable in order to get the correct balance of air and water, as well as t...
Autistic Spectrum Disorder Autism is a pervasive development disorder and since the 1980’s the idea of a ‘spectrum of autistic disorders’ has been widely acknowledged. The causes of autism are complex and it is unlikely that there is a single cause, but rather a set of triggers involving biological/medical, psychologic...
Steven and Chayse were making towers with DUPLO. They decided to join their towers together to make a ‘giant tower’. They thought the tower was taller than me. I said, “Let’s measure.” When they measured, I was taller than the tower. They wanted to add to the tower until it became taller than me. We used words like mea...
The consonantal sounds "w" and "v" The sounds denoted by the letters "w" and "v" in the English alphabet are very often confused by foreign language learners of English. However, it is very important to know and practise the correct pronunciation of these two sounds so that listeners do not confuse words that sound ver...
LAWRENCE — University of Kansas geologists have synthesized the mineral dolomite at a low temperature without the aid of microorganisms — a feat that scientists have been trying to accomplish for almost a century. Announced in a paper published today in The Proceedings of the National Academy of Sciences (PNAS), this w...
The US Supreme Court has a number of powers. These include the power to declare acts of Congress, the executive or state legislatures unconstitutional through the power of judicial review. The supreme court justices are also given the power to interpret the constitution when making decisions, again, through their power...
Context: You teach subjects where realistic applications of concepts are not always obvious or may be too complex for students. Problem & Forces: You need engaging examples that contain important elements of a concept or problem but minimize distractions. Patterns like EIA Learning Cycles, Solution Before Example, and ...
Fall offers great opportunities for learning and playing with math. The CORNY MATH booklet assists children with counting, estimation, prediction, and “non-standard” measuring skills (along with a few drawing/writing/pre-writing activities). CORNY MATH – CORNY FACTS Materials needed: One Printable Corny Facts Booklet (...
Anti-Bullying for Parents Working together to stop all forms of bullying – A Parents’ Guide ‘The repetitive intentional hurting of one person by an individual or group where the relationship involves an imbalance of power. Bullying can be carried out, physically, verbally, emotionally or in cyber space (Anti Bullying A...
Overall Goal: to ask questions about what we do in general and respond to them - Students can talk about what they do in general. - Students can ask "yes" or "no" questions. - Students can ask questions with an interrogative. - Students can use basic prepositions. - Students can talk about how often they do something. ...
Anemia is a condition that is sometimes found in young children. It can make your child feel cranky, tired, and weak. Though these symptoms may worry you, most cases of anemia are easily treated. This brochure explains the different types of anemia and its causes, symptoms, and treatments. What is anemia? Anemia is a c...
As the national capital, Washington, D.C. always has carried special meaning—representing both the federal government and the United States as a whole. No matter how Americans might feel about the state of the nation at any given time, they typically respect and revere the city—visiting on vacations and school trips by...
Mothers and babies 26 September 2007Add to My Folder Explore the different ways animals produce and care for their offspring Finding out about how animals produce offspring slots easily into topics on life processes or animal variation and classification. Children need to be taught that reproduction is a life process c...
The term derives from the greek works xylo, meaning wood, and graphia, meaning writing. This technique consists of creating cuts and incisions in a wooden plate. Xylography originally emerged in China, where the first stamps were made stamped on paper in the VIII century AD. In Europe, the first xylographic stamps were...
In the 17th Century, shipbuilders had to balance the requirement for a heavy armament against sailing qualities. Ships were also the homes of many men so space had to be found for their accommodation, stores and provisions. One of the most fundamental principles dictating the design of a British warship, however, was t...
The east to west or vice versa. The The photograph “Last Rail – Transcontinental Railroad, 1869” taken by the American photographer, Andrew J. Russell presents officers laying the last rail during construction of the Union Pacific Railroad marking a significant year and change for 19th century America. The first Transc...
The largest source of carbon dioxide emissions globally is the combustion of fossil fuels such as coal, oil and gas in power plants, automobiles and industrial facilities. Carbon dioxide is the major driver of global warming. Although carbon dioxide is produced naturally by volcanoes, the decay of dead plant matter and...
Study skills series Index study system Here is a method of studying that gives you an accurate perception of how well you know the material, and forces you to think about it, rather than just look over Review your notes and readings frequently, so the material is "fresh" As you're reading your text or reviewing your no...
When someone refers to the genome, they often mean all of the information contained within an individual's DNA. In fact, your genome actually refers to all of your DNA plus the proteins required to read and maintain it, as well as the many particles that help store and give shape to your DNA. Think of the entire genome...
Today, ‘bastard’ is used as an insult, or to describe children born to non-marital unions. Being born to unmarried parents is largely free of the kind of stigma and legal incapacities once attached to it in Western cultures, but it still has echoes of shame and sin. The disparagement of children born outside of marriag...
Like all professions, bookbinding has its own specialized vocabulary. What do you think bookbinders mean when they say they are “forwarding” a book? Are they pushing it in front of them? Are they sending to on to another recipient? Not likely. After a book is sewn together, it needs to be put between boards, and then t...
The Treaty of Versailles is the name given to the document stipulating the peace terms imposed on Germany by the Allied victors of the First World War. Canada had separate representation at the conference where the treaty was negotiated, marking an important stage in the gradual movement toward Canadian independence fr...
What is an Electric Circuit? In the simplest terms, an electric circuit is a pathway for an electric current to flow from one point to another. From a high level, every circuit has three basic components: A voltage source introduces energy into a circuit via a potential difference between its positive (+) and negative ...
In the Sensorial area of the classroom color boxes can be found. They are a part of the visual exercises of the sensorial materials. These include three boxes with lids containing color tablets. The first box contains a pair of the primary colors. The second box contains a pair of primary colors, secondary colors, and ...
The idea of a function is to assign a set of code, and possibly variables, known as parameters, to a single bit of text. You can think of it a lot like why you choose to write and save a program, rather than writing out the entire program every time you want to execute it. To begin a function, the keyword 'def' is used...
Home > Geometric reasoning > Activities > Dissected proof Before beginning this activity it is advisable to review the concept of similarity. Students should be familiar with proving that triangles are similar and using the proportion statements. One good way to prepare is to try a simple similarity problem. Prepare a ...
After the establishment of the Kingdom of Jerusalem following the First Crusade, pilgrims flooded to the newly freed Holy Land, but the situation was far from stable and the secular authorities were unable to guarantee the safety of pilgrims who ventured out upon the dangerous roads from Jerusalem to other pilgrimage s...
What would a Tree say? The Basic Idea Encourage good speaking and listening skills and fostering the imagination to interview a tree! Talk about how old trees are and how long they have lived. Imagine what a tree could tell you if it could talk! Get children to interview a tree to find out what stories it has to tell. ...
Classroom Instruction: Questions and Answers - Why do TWI programs strictly separate the two languages for instruction? Is there research to support this practice? - How long does it usually take students to start understanding and then start speaking in their second language? Does the rate vary by native language and ...
Nature curiosity: What happens to the animals during a prescribed burn? At this time of year, the sight of smoke in the distance is quite common, often the result of prescribed burns being conducted throughout the area to strengthen natural habitats for wildlife. Seeing these fires up close can beg the question: What a...
Researchers used supercomputers to create millennia of simulated earthquakes in Southern California, then studied what hazard these quakes might create. By Lauren Milideo, Ph.D., science writer (@lwritesscience) Citation: Milideo, L., 2021, Supercomputer creates over 700,000 years of simulated earthquakes, Temblor, htt...
A huge neutrino observatory buried deep in the ice of Antarctica has discovered only the second extra-galactic source of the elusive particles ever found. In results published last week in Science, the IceCube collaboration reports the detection of neutrinos from an “active galaxy” called NGC 1068, located some 47 mill...
The standard definition of scoliosis is a curve of the spinal column to the left or right side of the body, dextroscoliosis is a specific term meaning scoliosis of the spine with a curvature of the spine to the right. Dextro is derived from the latin word dexter which means “on the right side”. The opposite meaning is ...
Finding the area of a Parallelogram math quiz Finding the area of a Parallelogram math quiz, Parallelogram area calculation and formula for students in fourth grade, fifth grade and sixth grade. An important question is: How is the area of a slanted parallelogram found? There is a formula which students can use to this...
What Do Butterflies Eat In The Tropical Rainforest? The tropical rainforest is home to many unique and fascinating creatures, including the iconic butterfly. Butterflies are beautiful, delicate insects that are essential pollinators for plants in the rainforest ecosystem. But what do these graceful creatures eat? This ...
Long ago, as prescribed by the Hebrew scriptures, Jewish worship revolved around the Temple in Jerusalem. For a thousand years, the Temple was a hub for offering sacrifices of all sorts (peace offerings, thanksgiving offerings, atonement offerings and more) every day of the year. On the three annual pilgrimage festival...
Canada is home to a small variety of freshwater (land-based) and marine turtles, which are part of the reptilian family of the animal kingdom. Although the majority of Canada’s freshwater turtles inhabit Southern Ontario turtles can be found along the southern borders of most of Canada’s provinces. In contrast, among t...
British nationalism became the driving force of British politics and culture during the reign of the Protestant monarch, Elizabeth I. Her rivalry with Catholic Spain, and other Catholic powers of Europe, including the Papacy, made the masses in her island nation realize, probably for the first time, that they were a di...
Progressing Towards Mental Calculations No matter how hard we try to keep it pressure free. Sometimes kids just get overwhelmed by one or two senses doing all the work. Children are very tactile and this comfort to touch and manipulate the rods is hard to give up. Mental Calculations is an important skill that we are o...
Historical Context for Luke/John by Unknown The four canonical gospels—Matthew, Mark, Luke, and John—were all composed within the Roman Empire between 70 and 110 C.E (± five to ten years) as biographies of Jesus of Nazareth. Written a generation after the death of Jesus (ca. 30 C.E), none of the four gospel writers wer...
By Chris Fogwill, Chris Turney, and Zoë Thomas \| – Rising global temperatures and warming ocean waters are causing one of the world’s coldest places to melt. While we know that human activity is causing climate change and driving rapid changes in Antarctica, the potential impacts that a warmer world would have on this ...
Religious Education (RE) We want children to make sense of a range of religious and non-religious beliefs, so that - Identify, describe, explain and analyse beliefs and concepts in the context of living religions - Use appropriate vocabulary - Explain how and why these beliefs are understood in different ways, by indiv...
In 3100 B.C and Mesopotamians at 5000 B.C (1). The Nile river was a key place for the start of the Ancient Egyptian empire. Egyptians themselves were located near lower Egypt closeby the Nile Delta. They then slowly moved up around upper egypt. With clear fertile and rich soil, agriculture was most efficient and made t...
The DAYS Function in Excel is a Date/Time function that is used for calculating the number of days between two dates. The DAYS function was introduced in MS Excel 2013. Its purpose is to provide the days between two dates. Prior to this, we used End date-Start date. =DAYS (end_date, start_date) The function requires tw...
Language Conflict Assignment \| Top Universities Explain a conflict that you are aware of that centers around language(hint:almost all conflict centers around language）and explore where the breakdown occurs and the consequences.To get started you can ask yourself the following questions:Did the speaker/author make bad r...
This article originally appeared on www.sciencedaily.com, February 19, 2015. Much of the damage that ultraviolet radiation (UV) does to skin occurs hours after sun exposure, a team of Yale-led researchers concluded in a study that was published online February 19 by the journal Science. Exposure to UV light from the su...
Earlier definitions of gender-based violence (GBV) centered on violence against women. It was defined as any act of gender-based violence that results in, or is likely to result in physical, sexual or psychological harm or suffering to women, including threats of such acts, coercion or arbitrary deprivations of liberty...
The Substring method is used to grab characters from a string of text. For example, suppose you were testing an email address. You want to test the last four characters to see they are .com. You can use Substring to return just those four characters, and see what's in them. (You can also use IndexOf to achieve the same...
Yes, there are some definite rules about this, but first we should give a warning. These pictures are just a way of suggesting some information about the atoms. The atoms themselves are not put together in anything like the way the picture suggests, or even any way that can be pictured at all. We have some other answer...
What Are MLA Parenthetical Citations? Parenthetical citations are references within an essay that take the reader to the Works Cited page at the end of the paper where bibliographic information is supplied for sources used to write the essay. Parenthetical citations let the reader know where another's words, facts, or ...
By Dr. Katherine Vaughn Few symptoms cause as much confusion and concern as fevers do. Why do Fevers Occur? A fever is a resetting of the body’s thermostat to a higher temperature. This usually occurs in response to an infection, although other conditions can cause fever as well. Fever is an indicator that the immune s...
A Lightweight Skeleton The fact that a pelican approximately 5 feet long weighing nearly 20 pounds has a skeleton weighing only 23 ounces indicates how perfectly a birds skeleton is adapted to its capacity for flight. The reason the skeleton is so lightweight is that many bones in a bird's skeleton are hallow. The holl...
Videos, worksheets, games and acivities to help Algebra students learn about direct variation or direct proportion. We often use the term direct variation to describe a form of dependence of one variable on another. An equation that makes a line and crosses the origin is a form of direct variation, where the magnitude ...
A new model of ice volume change developed by Boston University researchers Maureen Raymo and Lorraine Lisiecki proposes a reason for this discrepancy. Like other models, it is consistent with traditional Milankovitch theory – which holds that the three cyclical changes in the Earth's orbit around the Sun (obliquity, p...
Visualization built by Greg Shirah and Tom Bridgman, NASA/Goddard Space Flight Center Scientific Visualization Studio. Caption by Mike Carlowicz You've seen the pattern in science class when you laid bits of iron around a bar magnet. The invisible force field around the magnet becomes suddenly visible when the iron fil...
Calculating the Acceleration of an Object in Simple Harmonic Motion In physics, you can calculate the acceleration of an object in simple harmonic motion as it moves in a circle; all you need to know is the object’s path radius and angular velocity. You can find the displacement of an object undergoing simple harmonic ...
"Chocolate Chip Cookies for Lunch!" In order for children to learn to read and spell words, they need to understand that a phoneme represented by more than one letter and that each letter can represent phonemes. This lesson will help children recognize what we call digraphs (two letters that make only one sound). An ea...
June 2009 Archives Superposition means putting one thing on top of another. Nature does it all the time, but it is only in the past thousand years or so that we have worked out how to exploit it. Ibn Sina, an 11th-century Persian better known in the West as Avicenna, understood how Nature piles younger sediment on top ...
In Independence Hall in Philadelphia on February 22, 1861, where he stopped to speak as he traveled to his inauguration as president of the United States, Lincoln asserted that “the sentiment embodied in” the Declaration of Independence had made the American Revolution a source of “hope to the world for all future time...
What is a Functor? Chances are you've already used a Functor. You probably use it everyday irrespective of the language you use. Paraphrasing Typeclassopedia: "A Functor represent a container of some sort with the ability to apply a function uniformly to every element of that container". Say we had a List of words and ...
Checklist for the Critical Areas of Mathematics-Grades K-5 Classroom Teachers Grades K-5 This document provides support for teachers as they as transition to Common Core Standards. It draws attention to the most critical skills for their grade. If more detailed information is needed, teachers should refer to the Common...
http://www.polarbearsinternational.org/ Polar Bear Status Report Polar bears are a potentially endangered species living in the circumpolar north. They are animals which know no boundaries. They pad across the ice from Russia to Alaska, from Canada to Greenland and onto Norway's Svalbard archipelago. No adequate census...
Contrary to their image as knuckle-dragging brutes, the Neanderthals on television play tennis and attend cocktail parties — and sell auto insurance. In reality, these mysterious fellow hominids died out about 30,000 years ago. Today, an international research team is extracting DNA from Neanderthals who were, literall...
Claudia Goldin introduces her students to the economic aspects of polygamy and fertility through "fun quizzes" that lead students to reevaluate their preconceptions. Before class, the instructor sends out notes to accompany the readings. Then there are short quizzes in class about concepts in the readings. For example,...

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