Notes, summaries, assignments, exams, and problems for Primary education

The Interwar Period: Economic Turmoil (1918-1939)

Global Economic Context

Following World War I, European countries faced devastating human losses, rampant inflation, and low production. They were burdened by significant war debts and desperately needed credit to finance their reconstruction efforts. The crisis was especially severe in Germany, which was unable to pay war reparations, facing hyperinflation, and struggling with immense debts.

In contrast, the United States emerged as the world's leading economy, becoming a hegemonic power in international trade and finance. The dollar became the main currency for international transactions. European countries were obligated to repay their war loans to the USA, and US agricultural and industrial... Continue reading "Economic Turmoil Between World Wars: The Interwar Period" »

Understanding the Sustainable Development Goals (SDGs)

The United Nations Sustainable Development Goals (SDGs) are a universal call to action to end poverty, protect the planet, and ensure that all people enjoy peace and prosperity. There are 17 interconnected goals:

• 1. No Poverty: End poverty in all its forms everywhere.
• 2. Zero Hunger: End hunger, achieve food security and improved nutrition, and promote sustainable agriculture.
• 3. Good Health and Well-being: Ensure healthy lives and promote well-being for all at all ages.
• 4. Quality Education: Ensure inclusive and equitable quality education and promote lifelong learning opportunities for all.
• 5. Gender Equality: Achieve gender equality and empower all women and girls.
• 6. Clean Water and Sanitation:

Ambient: simulate global lighting,  constant in all surfaces. Objects not lighted by extrnl source of light. Lghts parts that cannot be reached by source of light, but seen by  observer I = Ia*Ka

Diffuse: after a source of light incides in a surface, the reflected rays are dispersed in many directions (common: rough surfaces).A surface is an ideal diffuse reflector (Lambert reflector) if it reflects light in all directions with the = intensity → surface equally shiny from any perspective. I =Ip*Kp*(N*L)

Specular: effect of "bright spots" that see in a surface reflecting light, can only be observed from certain directions (common glossy surfaces) ▪ direction of specular reflection  determined by the angle of reflection (𝜙) with respect... Continue reading "3D Graphics Illumination and Surface Shading Techniques" »

Annapolis, Maryland

Credit: Christopher Boswell/Shutterstock

You may know bustling Annapolis is home to the U.S. Naval Academy and Maryland’s capital, but if you’ve never been, you might be surprised at its rich history. The Maryland State House has the honor of being the oldest state capitol in continuous legislative use — and was once the nation’s capitol building. George Washington resigned as commander in chief of the Continental Army in this building in 1783.

After a visit to the Naval Academy, be sure to spend some time walking along the City Dock. Stroll past art galleries, pubs, fashion boutiques, and gift shops. The highlight is “Ego Alley,” named for the parade of expensive and remarkable yachts that sail past this waterfront... Continue reading "Explore Annapolis and Ocean City, Maryland" »

Why People Love to Travel

I am going to talk about the reasons why people love traveling and the benefits we might get when we travel. Have you been on a trip recently? Let me tell you a bit more about the reasons why people decide to travel. Nowadays, people travel mostly for pleasure. Travelers typically choose destinations where they think they’ll feel relaxed in different ways. Other people instead prefer traveling for deeper, more conscious motivations. For example, if you have lived all your life with the comforts of western society, it’s easy to forget that life is not as easy for everyone around the world. In this case, traveling to a different country might help you put your life in perspective and find relaxation in a different... Continue reading "The Joys and Benefits of Traveling" »

Nouns from Verbs

You can make nouns from some verbs by adding the suffix -ion:

• instruct → instruction
• inform → information

Study Nouns

• communication
• concentration
• correction
• distraction
• education
• imagination
• information
• instruction
• motivation
• participation
• presentation

Reported Commands and Requests

To report commands, use tell + object + (not) + to + verb:

“Don’t run.” → He told us not to run.

To report requests, use ask + object + (not) + to + verb:

“Could you go inside?” → Mrs. Evans asked us to go inside.

Giving Examples

My desk isn’t very neat. There are lots of things on it, such as sticky notes and notebooks.

I write information about my homework assignments in my notebook, including when the teacher told us to hand them in.

Writing Resolutions

In... Continue reading "Study Skills and Language Techniques" »

Understanding Search Engine Optimization (SEO)

Crawling and Indexing

Web crawlers, also known as bots, robots, or spiders, are software programs designed to follow links, gather information, and send it back to search engines for indexing. This process allows search engines to understand the content and structure of websites.

Evolution of Google Search Algorithms

Over the years, Google has implemented various algorithm updates to improve search results and combat spam. Some notable updates include:

• Google Dance (2002): Click-through rates started influencing search rankings.
• Austin (2004): Targeted websites with keyword stuffing.
• Google Suggest (2008) & Google Instant (2010): Introduced predictive search based on search history.
• Hummingbird (2013)

Reproduction

We make new living beings similar to us. Men develop facial hair, deeper voices, more body hair, and bigger muscles. Women develop breasts, thicker lips, higher voices, and less body hair. The uterus is where the baby develops during pregnancy. Fallopian tubes connect the ovaries to the uterus. Ovaries contain the female sex cells, ova. The vagina connects the uterus to the outside of the body. The vulva is the external skin of the female reproductive system, which protects the opening of the vagina. The prostate gland produces a liquid that transports spermatozoa and provides them with nutrients, semen. The urethra is the tube that transports semen to the outside of the body. The penis is the organ that contains the urethra. Sperm... Continue reading "Human Reproduction: Anatomy and Process Explained" »

Essential English-Spanish Vocabulary List

• ...are used - se usan
• ...is used - se usa
• A few hours ago - hace unas horas
• A long time ago - hace mucho tiempo
• A table for...# - una mesa para #
• A/an - un/una
• Above - sobre
• To accuse - acusar
• Administration - la administración
• Administrator - el administrador
• Afternoon - la tarde
• Algebra - el álgebra
• To allow/permit - permitir
• Almond - la almendra
• Already - ya
• An hour ago - hace una hora
• Andean - andino/a
• To announce - anunciar
• To answer - contestar
• To arrive - llegar
• Art - el arte
• To ask (a question) - preguntar
• To ask for/order - pedir
• Assistant - el asistente
• Astronomy - la astronomía
• At/to - a
• To attend - asistir a
• Avocado - el aguacate
• Backpack - la mochila
• Bacon - el tocino
• Bad - estar mal/ser malo
• Baked - al horno
• Band -