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Are visual representations always helpful in the communication of…

- - - - Truth is one of the TOK core concept that will be use in answering this question
      - While looking at this concept, we have to identify whether or not things can be true within certain limits by asking ourselves how truthful and reliable the statement is.
      - In this question, we will identify the truth whether the visual representation always helpful in the comm
      - Truth is the aim of belief where people need the truth about the world in order to thrive which make it the important element in answering the question.
    - - Everything in this question will be proven based on some kind of evidence springing from experiments, observations or trusted source.
      - We will find out evidence that has been done before to show the effectiveness of using visual representation in the communication of knowledge to answer this question based on the trusted reference
      - Evidence is a piece of information upon which we base our judgment or conclusion.
      - Good evidence is something that is reliable, authentic, understandable, and representing the situation which we can use them to answer the question accurately
      - Bad evidence will give us difficulty to make a judgement it conclusion because the evidence is difficult to understand and does not really reliable with the situation
    - - Perspective is one of the TOK concept to examines how human see things differently based on their opinion and thought.
      - We want to examine the perspective of human on visual representation whether it can be helpful in communication of knowledge or not for them
      - This concept some extent help to observe the effectiveness of using the visual representation on different human based on different area of knowledge
      - Specifically, this enables us to understand how the measurements made in our own frame of reference would appear in the frame of another person or group
- - - - What is tree diagram?
        
        In the areas of general mathematics, probability, and statistics, a tree diagram is a tool that assists in determining the number of possible outcomes of an event or problem and organizing those potential outcomes.
      - How tree diagram can be helpful in Mathematics?
        
        A tree diagram is simply a way of representing a sequence of events visually. Tree diagrams are particularly useful in probability since they record all possible outcomes in a clear and uncomplicated manner.
        
        For students especially those with learning disabilities, both receiving instruction and solving problems by using visual representation will help support their deeper understanding of concepts and operations in mathematics
      - Why people use tree diagram as a visual representation?
        
        Good problem solvers usually construct a visual representation of tree diagram to solve an event or problem to help them comprehend it more easier
      - What is the limitation using the tree diagram as visual representation?
        
        Even if the representation is simple, the more information is visualized in a tree diagram, the more confusing the whole thing becomes. Most visualizations have this problem in common if they have too much information or problem to solve.
      - Can people solve probability without using tree diagram?
        
        Yes, by using a specific formula. However, using formula make people harder to understand the possible outcomes especially those who have learning disabilities.
        
        Sometimes people don’t know whether to multiply or add probabilities if using formula. A tree diagram makes it easier to figure out when to add and when to multiply probability.
        
        Plus, seeing a diagram of a problem, as opposed to a bunch of equations and numbers on a sheet of paper, can help us see the problem more clearly. (JENNIFER L. COOPER, 2017)
    - - What is pie chart?
        
        A pie chart is a circular statistical graphic, which is divided into slices to illustrate numerical proportion. In a pie chart, the arc length of each slice is proportional to the quantity it represents.
      - How does pie chart help in Mathematics?
        
        Commonly, pie charts help us to express proportional or percentage data and frequently the percentage represented by each category is provided next to the corresponding slice of pie
        
        Furthermore, they are good for displaying data for around 6 categories or fewer. If more that 6, it might be harder for people to interpret the percentage of data
        
        This kind of graph is helpful when graphing qualitative data, where the information describes a trait or attribute and is not numerical.
      - Why people use pie chart?
        
        Pie charts, also commonly known as pie diagrams help people in interpreting and representing the data more clearly. It is also used to compare the given data in a visual way.
        
        For example, a pie chart can be used to represent the money spent by a person at the funfair. The different indicated color in the slice of pie chart shows the amount spent on each different category.
      - What is the advantage using pie chart?
        
        A pie chart is a simple and easy-to-understand method to represent the data visually as a fractional part of a whole.
        
        It provides an effective mathematics communication tool visually simpler than other types of graphs.
        
        Pie chart helps in data comparison for the people at a glance to give an immediate analysis or to quickly understand information
      - Does pie chart always helpful in every problem solving?
        
        Sometimes no because pie chart does not easily reveal exact values in the data set. They only show a percentage of data. Thus, the problem solver need to calculate manually in order to get the exact value
        
        If there are too many categories, then there will be a multitude of pie pieces. Some of these are likely to be very skinny and can be difficult to compare to one another. (Taylor, Courtney, 29 August 2020)
  - - - In Economics, the combination of various visual representation modes, such as diagrams, graphs and symbols, provides students with a multitude of potential ways to represent their current understanding (Lemke, 2002).
      - Does supply and demand related to each other?
        
        In economics, supply and demand is a relationship between the quantity of a commodity that producers wish to sell at various prices and the quantity that consumers wish to buy.
        
        It is the main model of price determination used in economic theory.
      - What is the uses of supply and demand diagram?
        
        A supply and demand graph diagram is use to represents the relationship between how much of a product is available to a market and how much the consumers in a market want the product.
        
        Supply and Demand diagram are also used to show relationships or connections, data sets (and equilibrium), and changes or shifts of the supply curve or demand curve.
      - Why does people use diagram to interpret supply and demand in economics?
        
        Economists use diagram not only as a compact and readable presentation of data, but also for visually representing relationships and connections which in other words, they function as models.
        
        The diagram also condense detailed numerical information to make it easier to see patterns (such as “trends”) among data.
        
        A supply and demand curve also helps people see how efficiently they're managing their stock at a glance.
        
        It shows where they may be wasting product or, conversely, whether they may be missing out on potential sales because of a lack of stock.
      - Economist can understand the big picture and make better decisions on resource allocation to create the most value for customers, fulfill customer demands, and generate more sales by looking at the diagram.
    - - The construction of visual representations in geographical concepts can supports students to develope their understanding because they provide an easy-to-process structure to retrieve, and show, their knowledge through diagram (Vekiri, 2002).
      - What is geographical chart?
        
        Geographical charts (also referred to as geo charts or map charts) are ideal visualization tools for data that is different for each state, country, or region
        
        A geographical chart shows the reader a heatmap of values spread out over various regions of a map.
        
        For example, the population of the United States map could be displayed with denser areas in darker colors and sparsely populated areas in lighter shades of the same color.
      - When does geographical chart can be use?
        
        A geographical chart can be used in any context where the data is a function of population or of a larger region.
        
        For example, in cases where population attributes need to be studied such as disease prevalence, safety coverage, the number of schools per million families, or crime rate, a geographical chart is the best visualization technique to use.
      - What is the challenges using geographical chart?
        
        The earth is spherical, but most geographical charts are flat. This often means that some regions are smaller, larger, or more spread-out on a flat surface than they are on the actual planet.
        
        This can sometimes cause problems to the geographer to analyze when using connections on a geographical chart, as the distance between two points may not be entirely accurate.
        
        In some countries, different colors have significant meanings. In the USA, red and blue are on the American flag and represent the main two political parties. Choosing agnostic colors is important to avoid preconceptions as this is one of the ethical consideration
      - What is the benefits using geographical chart?
        
        The geographer feels incredibly easy to decipher the information. It is visually interesting and clearly shows a concept (or set of measurements).
        
        It also allows people to see the world in a different way by mapping the position and quantity of things, mapping the density of people and objects and mapping any changes that occur