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

Understanding Unemployment

Historical Roots & Economic Costs

Unemployment is a phenomenon of the industrial economy, emerging over the past two centuries. In the past, land was an important source of employment. Nowadays, unemployment incurs significant economic costs due to production loss, and substantial social costs because of its negative effects on income distribution.

Factors Shaping the Job Market

Laws, social institutions, and personal assessments are among the many factors that influence the job market.

Spain's Labor Market: 1980-2011 Trends

Pre-Crisis Growth & Post-Crisis Plunge

According to García Brossa, the evolution of the Spanish job market from 1980 to 2011 has been characterized by several key developments. There was an... Continue reading "Unemployment Dynamics: Economic & Social Impacts" »

Advanced English Vocabulary: Character and Emotion

Adjectives Describing Character Traits

• Adventurous
• Talented
• Sensible (Sensato)
• Sensitive (Sensible)
• Brave (Valiente)
• Determined
• Reliable (De confianza)
• Organised
• Independent
• Stubborn (Obstinado, terco)
• Ambitious
• Confident
• Practical (Práctico, eficaz)
• Generous
• Mean (Egoísta)
• Responsible
• Aggressive
• Optimistic
• Pessimistic

Additional Character Adjectives

(Often used to describe negative or strong traits)

Violent, Arrogant, Rude, Loud (Ruidoso), Selfish, Aggressive, Stupid, Hard-working, Loyal (Leal), Enthusiastic.

Adjectives Describing Feelings and Emotions

• Relaxed
• Nervous
• Pleased (Satisfecho)
• Embarrassed
• Angry
• Annoyed (Disgustado)
• Fed up (Harto)
• Disappointed
• Stressed
• Calm
• Upset (Trastornado/acongojado)
• Scared (Asustado)
• Satisfied
• Confused
• Shocked
• Glad
• Concerned
• Depressed

Essential

MapReduce is a computing paradigm for processing data that resides on hundreds of computers, which has been popularized recently by Google, Hadoop, and many others. The paradigm is extraordinarily powerful, but it does not provide a general solution to what many are calling “big data,” so while it works particularly well on some problems, some are more challenging. This book will teach you what problems are amenable to the MapReduce paradigm, as well as how to use it effectively. At first glance, many people do not realize that MapReduce is more of a framework than a tool. You have to fit your solution into the framework of map and reduce, which in some situations might be challenging. MapReduce is not a feature, but rather a constraint.... Continue reading "Understanding MapReduce Design Patterns" »

Electrolysis of Molten Sodium Chloride

Example: Molten sodium chloride:

• Cathode: 2H⁺(aq) + 2e^- → H₂(g) (hydrogen bubbles off)
• Anode: 2Cl^- → Cl₂(g) + 2e^- (chlorine gas produced)

Electrolysis of Aqueous Sodium Chloride

Aqueous solution of sodium chloride:

• At the cathode: Na⁺ and H⁺(aq) are present. H⁺(aq) is discharged because hydrogen is below sodium in the reactivity series. 2H⁺(aq) + 2e^- → H₂(g)
• At the anode: OH^- and Cl^- are present. Cl^- is discharged because it is in high concentration. 2Cl^-(aq) → Cl₂(g) + 2e^-

Positively charged ions move to the negative electrode during electrolysis. They receive electrons and are reduced.

Negatively charged ions move to the positive electrode during electrolysis. They lose electrons and are oxidized.

Brine

A News Report: Stormy Day in Villahermosa

On July 4th, 2015, my friend and I were in a park when suddenly the wind surprised us. We were on our way to a party at Voladero disco when the wind broke a large tree branch and some bottles. The local police in Villahermosa arrived to assess the damages.

However, my friends and I went to our houses with some dust on our clothes. Later, my friend Rosa and I went to the pub in the square, and after a while, more people started to arrive. People were a little scared at first, but as time passed, they calmed down.

In conclusion, the party ended at the same time that the storm finished.

Informal Email to Anna

Hi Anna,

It's been a long time since we've seen or spoken to each other. I hope you are doing well in... Continue reading "A Stormy Day in Villahermosa and Other Stories" »

A Letter of Disappointment

Regarding "Young People Are Lazy and Impolite"

Dear Editor,

I was disappointed to read your article on the 9th of February, "Young People Are Lazy and Impolite". I'm tired of reading false stories that all young people are uncaring, lazy, or impolite when this is not true.

I am a person who studies and works at the same time. I also care about my family and friends. I consider myself a responsible girl. Moreover, in my free time, I like to have fun and go out with my friends.

Furthermore, all of my friends study or work, and they are concerned about their future.

In summary, not all young people are lazy and rude. What's happening is that people classify all young people without knowing them personally.

Yours faithfully,... Continue reading "Letters to the Editor: A Compilation" »

Living Alone: The Glittering Truth

The Allure of Independence

As young adults, we crave independence. We long to break free from our parents' control and rules, often believing that living alone is the key to achieving true autonomy. We envision a "perfect lifestyle" filled with freedom and rights. However, this independence comes with its own set of responsibilities and challenges.

The Price of Freedom

When living alone, it's easy to neglect chores and embrace disorganization. After all, there's no one to complain about the mess. However, the need to clean and organize eventually arises, reminding us that freedom doesn't exempt us from responsibility.

While we relish the freedom to choose our meals, we also become responsible for grocery shopping... Continue reading "The Impact of Electricity: A World Powered by Innovation" »

British Modernism

A Literary Response to Disillusionment and Lost Community

Modernism emerged from a profound sense of disillusionment and the loss of community and civilization. The horrors of World War I shattered faith in established institutions and traditional values, leaving individuals feeling alienated and questioning the meaning of life.

Modernist writers explored themes of pessimism, psychological turmoil, and the search for meaning in a world that seemed fragmented and uncertain. They challenged conventional literary forms and experimented with new techniques to reflect the complexities of the human experience.

Key Characteristics of Modernist Writing:

• Character: Modernist literature moved away from clearly defined characters, instead

Satire

Satire refers to any writing, in poetry or prose, with the purpose to ridicule, censure (criticize unfavorably), and correct the vices, follies, stupidities, and corruptions of society that threaten good moral order and literary discipline. The best and most representative works are found in those written by Pope and Swift, two masters of satire. Some satire is meant to make us laugh at human foolishness and weaknesses; some satire is meant to make us angry about human vices and crimes. Satire can be aimed at humanity in general, stereotyped groups, or a particular person.

Techniques of Satire

There are some common techniques used in satire:

• Exaggeration: To enlarge, increase, or represent something beyond normal bounds so that it becomes