[TRANS] UNIT XX: TITLE I II III IV VARIOUS TYPES OF PATTERNS LOGIC PATTERNS OUTLINE Nature of Mathematics Mathematics as Study of Patterns Mathematics in Nature Fibonacci Sequence Logic patterns are usually the first to be observed. Classifying things, for the example, comes before numeration. Being able to tell which things are blocks and which are not precedes learning to count blocks. One kind of logic pattern deals the characteristics of various objects while another deals with order. NATURE OF MATHEMATICS It is in the objects we create; in the works of art we admire. Although we may not notice it, mathematics is also present in the nature that surrounds us, in its landscapes and species of plants and animals, including the human species. Our attraction to other humans and even our mobility depends on it. Sunflowers are stunning, and the way their huge yellow heads pose against a bright blue sky is classic. And of course, most of us enjoy munching on the seeds they produce have you ever stop looking at the pattern of seeds kept in the center of the center of those rare flowers? Sunflowers are more than just fine food- they’re mathematical wonders as well the seed pattern in a sunflower is based on the Fibonacci sequence. MATHEMATICS • • • • • • • Defined as study of numbers and arithmetic operations. Set of tools that can be applied to question of “how many “of “how much”. A study of pattern A language A process of thinking A set of problem-solving tools An art NUMBER PATTERNS MATHEMATICS AS A STUDY OF PATTERNS GEOMETRIC PATTERNS A pattern is an arrangement which helps observes anticipate what they might see or what happens next. A pattern also shows what may have come before. A pattern organizes information so that it becomes more useful. Here are some examples of patter- seeking behavior of humans from childhood to adulthood: • A toddler separates blue blocks from red blocks. • A kindergarten student learns to count. • A first grader does skip counting. • A third grader creates notices that multiples of two are even numbers. • A sixth grader creates patterns that cover a plane. • A junior high school student learns that a function is essentially a pattern of how one number is transformed to another. • A college biology undergraduate studies the sequence of DNA and proteins. • A stock trader studies trends in the stock market. • A weatherman makes weather forecasts based on atmospheric pattern. Patterns are studied because they are everywhere; people just need to learn to notice them. Number patterns, such as 2,4,6,8,10 is familiar to students they are among the first patterns encountered in school. Mathematics is especially useful when it helps predict events. Example: 1. 1, 10, 100,1000, 10000, 100000 2. 180, 360, 540, 720, 900, 1080 A geometric pattern is a motif or design that depicts abstract shapes like lines, polygons, and circle, and typically repeats like a wallpaper. Visual patterns are observed in nature and in art. WORD PATTERNS Patterns can also be found in language like the morphological rules on pluralizing nouns or conjugating verbs for tense, as well as the metrical rules of poetry. Each of these examples supports mathematical and natural language understanding. The focus BERNABE, SCYRAH ALLANA L. | 1L-BSN 1 TRANS: Unit Title here is pattern in form and in syntax, which lead directly to the study language in general and digital communication. Example: Wife: wives: wolf: wolves Tomato: tomatoes: mango: mangoes Sun: Earth: Earth: moon MATHEMATICS IN NATURE This spiderwort has three-fold symmetry Vitruvian man of Leonardo da Vinci Leonardo da Vinci’s Vitruvian man showing the proportion and symmetry of human body. This snowflake has six-fold symmetry People, such as da Vinci, saw mathematics as a universal constant, with proper proportions repeating themselves across the universe. It is known as the Vitruvian Man because it is actually an illustration of concepts describe by the Roman Vitruvius in the 1st century BC. Fibonacci sequence is named after Italian mathematician Leonardo of Pisa, who was better known by his nickname Fibonacci. He is said to have discovered this sequence as he looks a hypothesized group of rabbits bred and reproduced. FIBONACCI SEQUENCE Pattern indicates a sense of structure and organization that it seems only humans are capable of producing these intricate, creative, and amazing formations. It is from perspective that some people see an “intelligent design” in the way that nature forms. Recall that symmetry indicates that you can draw an imaginary line across an object and resulting parts are mirror images of each other. The figure above is symmetric about the axis indicated by the dotted line. Note that the left and right portions are exactly the same. This type of symmetry, known as line of bilateral symmetry, is evident in most animal, including humans. Starting with 1 and 1, succeeding term n the sequence can be generated by adding the two numbers that came before the term 1+1=2 1+2=3 2+3=5 3+5=8 1,1,2 1,1,2,3 1,1,2,3,5,8 1,1,2,3,5,8,……. Fibonacci sequence has many interesting properties. Among These is that this pattern is visible in nature. Some beautiful pattern like the spiral arrangement sunflower seeds, the number of petals in a flower, and the shape of a snail’s shell- all contain Fibonacci numbers. There are other types of symmetry depending on the number of sides or faces that are symmetrical. Pinecone showing clockwise and counterclockwise spiral. This starfish has a five-fold symmetry It is also interesting to note that the ratios of successive Fibonacci number approach the number 0 (Phi) , also known as the Golden Ratio. This is approximately equal to 1.618. BERNABE, SCYRAH ALLANA L. | 1L-BSN 2 TRANS: Unit Title The Golden Ratio can also be expressed as the ratio between two numbers, if the latter is also the ratio between the sum and the larger of the two numbers. VOCABULARY of symbols or words. GRAMMAR LEONARDO OF PISA Consisting of rules on the use of these symbols. COMMUNITY OF PEOPLE who use and understand these symbols. RANGE OF MEANING that can be communicated with these symbols. Mathematics is a system of communication about objects like numbers, variables, sets, operations, functions, and equations. It is a collection of both symbols and their meaning shared by a global community of people who have an interest in the subject. Regardless of where in the world learners of math come from or what language they speak, they will likely understand what those symbols mean. Leonardo Pisano Fibonacci (1170-1240 or 1250) was an Italian number theorist. He introduced the world to such wide-ranging mathematical concepts as what is now known as the Arabic numbering system, the concept of square roots, number sequencing, and even math word problems. V VI VII VIII IX OUTLINE Is Mathematics a Universal language? Characteristics of Math Language Expressions vs. Sentences Conventions on the Mathematical Language Propositions and Symbols MATHEMATICAL LANGUAGE LANGUAGE KEY TAKEAWAYS: WHY MATH IS A LANGUAGE • • • In order to be considered a language, a system of communication must have a vocabulary, grammar, syntax, and people who use and understand it. Mathematics meets this definition of a language. Linguists who don't consider math a language cite its use as a written rather than spoken form of communication. Math is a universal language. The symbols and organization to form equations are the same in every country of the world. EXPRESSION VS. SENTENCE A sentence must contain a complete thought. In the English language, an ordinary sentence must contain a subject and a predicate. An expression is a name given to the mathematical object of interest. Language is “a systematic means of communicating by the use of sound or conventional symbols” (Chen, 2010, p. 353). It is the code humans use as a form of expressing themselves and communicating with others. It may also be defined as a system of words used in a particular discipline. Language facilitates communication and clarifies meaning. It allows people to express themselves and maintains their identity. Likewise, language bridges the gap among people from varying origins and cultures without prejudice to their background and upbringing. The study of language teaches and encourages respect for other people. It is also an avenue to discover cultures. We can be living in the same location but have different languages. Moreover, every field has its own language. For example, “sin” in Religion is an immoral act however in Math “sin” is a trigonometric function. An “LP” for a Meteorologist means “Low Pressure” and for a teacher, it simply means a “Lesson Plan”. OMG ILY IRL, JK! Even in the world wide web, humans have developed their own language. Jejemon and Bekimon are some other notable trending languages in the Philippines. LANGUAGE COMPONENTS These definitions describe language in terms of the following components: Figure 1 and figure 2 show comparison and contrast of English and Mathematics as languages. In English, the subject can be a noun which could specifically be a person, place, or thing. On BERNABE, SCYRAH ALLANA L. | 1L-BSN 3 TRANS: Unit Title the other hand, for Mathematics, the subject turns out to be the numbers, sets, functions, or matrices. While the sentences formed using the respective expressions in both languages may either be true, false and sometimes true or sometimes false. A sentence that is “Always False” is the same as saying that it is ”Never True”. Here are some examples of expression for English and Math languages: English Math Poltician Philippines Covid-19 Pandemic x-y R f(x) And here are some examples of a sentence for English and Math languages: English Math The Philippines elected corrupt politicians. The COVID-19 pandemic slowed the economic growth of most countries. This module is exercising its freedom of speech. x+3=y-2 f(x) = sin x x ∈R CHARACTERISTIC OF MATHEMATICAL LANGUAGE PRECISE It can make very fine distinctions or definitions among a set of mathematical symbols. CONCISE It can express otherwise long exposition of sentences briefly using the language of mathematics. PROPOSITIONS AND SYMBOLS Logic allows us to determine the validity of arguments in and out of mathematics. It highlights the importance of precision and conciseness in the language of mathematics. A Proposition is a declarative sentence that can be classified as true or false, but not both. There are other types of sentences where true or false values cannot be assigned. PARADOX There are other types of sentences where true or false values cannot be assigned. The sentence “This article is false” is one example. If we assume that it is true, then it is false; if we assume that it is false, then it is true. Thus, the sentence cannot be classified as either true or false, so it is not a proposition. A self-contradictory proposition like this is called a paradox. COMPONENT STATEMENTS Words that make up a compound proposition. SIMPLE PROPOSITION a proposition that conveys one thought with no connecting words. Example: The Romualdez-Marcos political dynasty is the biggest scam the Philippines had by far. COMPOUND PROPOSITION contains two or more simple propositions that are put together using connective words. Example: Imelda graduated from the University of the Philippines, College of Law and her younger brother Ferdinand graduated from the University of Oxford. TYPES OF COMPOUND PROPOSITION CONJUNCTION (∧) E.g., China has Xi Jinping AND the Philippines has Ferdinand Marcos Jr as its leader. DISJUNCTION ( ∨ ) POWERFUL One can express complex thoughts with relative ease. MATHEMATICAL SYMBOL There are two ways the word or is used in English. • Inclusive Disjunction (OR) The inclusive or is true when at least one of the two propositions is true. E.g., I will pay the whole hospital bill OR I will get a Philhealth subsidy. • Exclusive Disjunction (XOR) The Exclusive or is true when exactly one (but not both) of two propositions is true. E.g., I am either Covid-19 positive or negative. CONDITIONAL (→) E.g., IF Senator Cayetano gets re-elected THEN every Filipino family will have 10,000 pesos Ayuda (aid) BICONDITIONAL (⟷) Mathematics is a branch of science that is composed of several fields. Several symbols are being used for each field of mathematics. The Conjunction of two conditional statements where the antecedent/premise and consequent/conclusion of the first statement have been switched in the second statement. E.g., Two sides of a triangle are congruent IF AND ONLY IF the two angles opposite them are congruent. BERNABE, SCYRAH ALLANA L. | 1L-BSN 4 TRANS: Unit Title NEGATION (∼) The negation of a given statement is a statement that is false whenever the given statement is true, and true whenever the given statement is false. E.g., The Supreme Court ruled with finality that the Marcos family owned the government P23 billion in estate tax. Negation: The Supreme Court did NOT rule with finality that the Marcos family owned the government P23 billion in estate tax. finality that the Marcos family owned the government P23 billion in estate tax. Negation: The Supreme Court did NOT rule with finality that the Marcos family owned the government P23 billion in estate tax. REFERENCES Notes from the discussion by Jan Mclean Tan National University MMW Module 1 National University MMW Module 2 BERNABE, SCYRAH ALLANA L. | 1L-BSN 5