2017 has arrived and with it come back some nice new instructional trends that we have a tendency to, here initially TUTORS, are following. the primary trend that we have a tendency to remove into this year is Maths Mastery; a programme that aims to boost understanding, enjoyment and attainment in arithmetic.. How to master Math
Many youngsters struggle with MATHS and while not somebody to clarify higher or some home non-public TUITION several students area unit troubled to achieve a minimum of a grace C in their Maths GCSE. an editorial within the TELEGRAPH states:
Why is Maths thus important?
How to master math
Maths isn’t simply a lesson youngsters learn in class however a life ability required throughout their lives; from learning to inform the time and enumeration amendment to creating choices anon in life like mortgage rates, investment choices and understanding information. it’s a ability that we have a tendency to use everyday of our lives.
Most professions use some variety of Maths to perform their duties and also the higher understanding you’ve got of Maths from a young age the better life are for you as you mature. figuring out easy sums or hard bound issues won’t would like such a lot of your attention going you able to target different aspects of your life.
So, what’s Maths Mastery?
Maths Mastery is associate degree approach to the approach arithmetic is educated getting to deepen mathematical understanding altogether youngsters. it’s knowledgeable development programme for academics everyplace that conjointly offers information resources for school rooms and opportunities for collaboration between academics.
Maths Mastery aims to explore totally different mathematical ideas and understanding that mathematical approach would be the foremost effective in numerous things. youngsters area unit inspired to use visual aids and abstract concepts to represent varied mathematical ideas and to use data gained to real-life situations.
Step to Master Math
The key principles of Maths Mastery are:
Children can build skills required to resolve new issues by grasping the relevant mathematical principles.
Children area unit inspired to make up their confidence and resilience with the stress on the importance of maths in education.
Concrete, pictorial, abstract
Helping to insert their mathematical data exploitation footage, objects, numbers and words to complement their learning expertise.
Depth before breadth
The great approach that youngsters ought to be the time to utterly perceive and explore what they need learnt before rushing onto new topics.
Growth mental attitude
Understanding that a child’s skills are often developed and increased through apply.
Introducing key mathematical terms and language to youngsters serving to them to make their language and reasoning skills.
I’m going to discuss further about the walkie talkie technology. Walkie talkie is a technology that use to communicate, it is a hardheld, portable, twoway radio transceiver. They communicate wirelessly (using radio waves) on a single, shared frequency band. Each battery powered unit contains a transmitter/receiver and antenna (for sending and receiving radio waves), a loudspeaker that often doubles up as a microphone when you talk into it, and a button that you “push to talk”. Unlike a normal radio, which will only pick up broadcast voices or music from a radio station, a walkie talkie is a two way radio, while you can both talk and listen then you will send your voice either you will receive the voices. The main drawback is that the same frequency channel is used for both things, so only one person can talk at a same time.
There are the advantages of walkie talkies. Walkie talkie is the most benefits over mobile phones are that they are license free and do not have any associated call charges. You can clip a walkie talkie to your clothing; they are lightweight and easily carried about your person. The walkie talkies can be used in any activities such as playing, business purposes, security purpose and educational purpose. The walkie talkie/two way radio can transmit voice signals at the maximum range of two to ten miles. You can connect to one another with no hassle. Compared to cellular phones, this device can be used even if there is no signal coming from the cell sites of the communication companies because it has own or frequency to use, and also for the another one who listen. In terms of clarity and security, walkie talkie radios are much clearer and secure because it toggles between the talker and listener. Also, the communication device is easy to use and you can communicate immediately without hassles.
Therefore walkie talkie has some disadvantages too, such as their low power results in relatively short range compared with higher power radios, easy availability may result in the channels being congested with multiple users, in some areas shortterm hire channels may be shared with several other users, and by sharing of a limited number of radio channels can result in the channels being congested with multiple local users.
One of the solution is that, If you have an unlicensed twoway radio, then transmission interference is the drawback of this. Unlicensed radios share their frequencies with others. If your site is situated in a builtup busy area then this could be a problem if you do not want others listening into transmissions or you hearing any interferences. If interference is an issue for you on your unlicensed radios then you should seek to purchase a licence from Ofcom. The Office of Communications (OFCOM) is responsible for the enforcement, protection and management of the radio spectrum.
This technology occurs with some serious problem while they are using it. The electromagnetic radiation in the walkie talkie consists of waves of electric and magnetic energy moving together (that is, radiating) through space at the speed of light. Radiofrequencies are a natural consequence of wireless and electronic devices. Radio frequencies are most closely associated with broadcasting media, such as radio, walkie talkie, television, or anything that has antenna, built in or otherwise. Radiofrequencies waves can be characterized by a wavelength and a frequency. The radio frequencies part of the electromagnetic spectrum is generally defined as that part of the spectrum where electromagnetic waves have frequencies in the range of about 3 kilohertz (3 kHz) to 300 gigahertz (300 GHz). Biological effects that result from heating of tissue by the radiofrequency energy are often referred to as “thermal” effects. At relatively low levels of exposure to radiofrequency radiation, that is, levels lower than those that would produce significant heating, the evidence for harmful biological effects is ambiguous and unproven.
In general, however, studies have shown that environmental levels of radiofrequency energy routinely encountered by the general public are typically far below levels necessary to produce significant heating and increased body temperature. There may be situations, particularly workplace environments near highpowered radio frequency sources could affect the
environments. Where recommended limits for safe exposure of human beings to radio frequency energy could be exceeded. In such cases, restrictive measures or actions may be necessary to ensure the safe use of radio frequency energy. There are other sources of information regarding RF energy and health effects. Some States maintain nonionizing radiation programs or, at least, some expertise in this field, usually in a department of public health or environmental control.
The college students has proven that cell phone radio frequencies may instigate brain tumors and even cancer, exposures to radio frequencies have been unofficially linked to sleep disorders, headaches, and other neurological problems. Also, it claims that cell phones promote “radio wave sickness” have propagated through society for years. Associated illnesses include multiple sclerosis, depression, autism, and a slew of other common ailments. These are just a few of the examples of health hazards unofficially charged to radio frequency emissions.
Communications Technology: Wi-Fi
What is the 21st century without Wi-Fi or Internet connection? Almost everywhere we go, there is always a source of Wi-Fi available. We always see people with their eyes glued to their electronic devices, either playing games, going on social medias, browsing, doing their homework, etc. These activities definitely will not be possible without Internet connection or Wi-Fi. Basically every person who has access to Wi-Fi would use it for any purpose. Toddlers nowadays are able to use applications that require Wi-Fi without even having to be guided by their parents. So what actually is Wi-Fi and how many impacts has it made in the world we live in today?
According to Brain, Wilson, and Johnson, Wi-Fi is a wireless network that uses radio waves, just like cell phones, televisions and radios do. The difference between the radio waves of Wi-Fi and other devices is that Wi-Fi transmits and receives data in a Gigahertz range, while the others receive or transmit data in the Kilohertz or Megahertz range. These radio waves enable devices to have network connectivity. Wi-Fi is actually an abbreviation, but people are not exactly sure of what it stands for. The most general abbreviation of it is usually wireless networking or wireless fidelity. As almost everyone knows now, Wi-Fi has been widespread all around the world in different places such as people’s homes, malls, cafes, airports, and more public places. It’s because there aren’t any extension cables required to connect people’s devices to the Internet, rather just choosing a Wi-Fi network on your device immediately, making it more convenient.
As mentioned before, Wi-Fi is basically everywhere and it is practically considered a necessity for humans living in the 21st century. So it is important for people to know at least the basics of how Wi-Fi works. Wi-Fi, as mentioned before, emits radio waves to transmit the information within a network. For the electronic device to be able to receive and translate the data into a radio signal, it first has to pass through a wireless adapter that is inserted in the device. When the data has been translated, it will then be transmitted using an antenna to a router. When it receives the signal, it will decode it and the router will send the information to the Internet through an Ethernet connection. It is also possible for this process to be reversed backwards.
If there was no Wi-Fi in the world we live in today, it would be quite chaotic because people don’t only need Wi-Fi for leisure, but also work and school-related tasks. Without it, research cannot be conducted and people would get little to no knowledge because of the very limited resources for research. Also, Wi-Fi supports the usage of free and quick communication via E-mail and social medias. People can receive messages quickly and don’t have to use the old version of communication. This is important because news can also spread quickly and people can know what is happening around the world in a more convenient and faster manner. Without Wi-Fi, people couldn’t be as updated and communicate as quickly. Even though Wi-Fi plays a very vital role in the society we live in today, there are some limitations from it that can affect people in a bad way. First of all, Wi-Fi supports the free use of the Internet. Some contents in the Internet should actually be forbidden
to post because of the explicit and mature content, which isn’t suitable for all age groups. Even though this problem has been solved by people who are aware of it by blocking access to the inappropriate sites, a lot of people are still not aware if there is mature content and might be unsuitable and harm the people viewing it. Also, people might be too addicted to their electronic devices because Wi-Fi can provide their basic necessities and they would not need anything else to satisfy them. In other words, Wi-Fi can trigger the addiction to electronic devices and certain applications. Too much viewing electronic devices can cause damage to the eyes and might cause skin cancer due to the radiation that is being shown off from the device.
A major factor that affects Wi-Fi and how it works is the weather. As some people might experience, Wi-Fi is usually slower when the weather is damp or rainy. This is because the dampness of the air slows down the speed of the signals and information that are being transmitted and received. Another factor that affects how Wi-Fi works is its frequencies. The slowest and most inexpensive standard is the 802.11b. It transmits data at a frequency level of 2.4GHz and it can only transmit up to 11 megabits per second. The newest and fastest standard is the 802.11ac. It is being used by a lot of people because it can transmit up to 450 megabits per second and can’t be easily affected by disturbances. It is also often mentioned as 5G Wi-Fi.
As explained above, Wi-Fi has impacted society in a lot of ways. It basically means that Wi-Fi affects a lot of social factors as compared to other factors. One of its
effects is that it can help people perform their daily tasks and get their work done. For example, students can’t complete their work without using Wi-Fi because they need to do a lot of research. Adults also will not be able to complete their daily tasks without Wi-Fi because first of all, they need the Internet to be updated on what’s happening in the world and also in their jobs, such as the stock markets, political events, etc. Wi-Fi has also helped society gain more knowledge in a more efficient and faster way because of the sites that have been posted on the Internet and can be easily accessed. Without the help from Wi-Fi, the Internet would be inaccessible and people would not be able to conduct researches and jobs that they need in their daily lives.
Wi-Fi would always become an important aspect in the lives of people who live in the 21st century and onwards. It has been a big step forward in technology and it would continue to evolve as time passes. The current world without Wi-Fi would be unimaginable because it has provided society with such resources that can be taken advantage from and would always be helpful for people who are willing to learn more.
In today’s world, we rarely see a single person not having at least one social media profile, whether the purpose is business or personal. Social media and the internet have been as of great importance to us, as they give us knowledge and fast access to information.
A few hundred years ago, we would find it nearly impossible to contact someone in another city or country without having to be there in person to deliver the message. Merely 70 years ago, there was hope. Electronic computers were created during the 1950’s and that is the start of internet creation. A bunch of scientists, engineers, and programmers poured hard work into creating this so-called “internet”.
Internet as Modern Communication Technology
The first internet provider was called ARPANET (Advanced Research Projects Agency Network). They were a packet switching network. In early 1970s, only 4 computers were connected to the mentioned provider but it did not cease to grow.
Then, wireless networks were created, the first few providers all under the name WaveLan. A few other providers came to join and it was somewhat a packet-switching provider party. It kept growing and it all became a single term: Internet.
So how does the internet work? We know we use it on a daily basis, and we need passwords to access it, but how does it actually work? Well, science. It uses radio waves so that the device you are on may have access to information on the net. This is also called a WLAN. This also connects to routers. If a house has wifi, then they must have routers. They are plugged into sockets in the house, and all the devicesare connected to it if it needs wifi. The router then proceeds to collect data from the internet and sends radio waves to the device.
With these complicated ways of creating the internet, it is now our main resource if we need to find something. There are lots os social medias such as twitter, facebook, instagram, youtube, including school program websites. We no longer need to go out of the country if a product is not made in our country because there is online shopping. Most schools now require students to bring gadgets such as laptops and iPads to complete their tasks. Instead of wasting paper, we can now use gadgets to submit our tasks to the internet.
Negative impacts of using Internet
Although there are countless benefits of the internet, there are some negativity seeped in there as well. Because gathering information is very easy now, humans are more lazy to do things that require energy. If they have everything on a single device inside their house, they don’t find travelling of great importance. This leads to sicknesses and diseases.
Nowadays, people have to make sure that they balance their health with entertainment. No one can have just good or bad in life. They need to make sure that they are not consuming their life on the internet as it is supposed to benefit them, not disadvantage.
Nonetheless, the internet is a beneficial place as tons and tons of people have found success over internet jobs, like there are YouTubers who are multi-millionaires, and translators who earn just as much as businessmen and businesswomen. Even with the few negative points the internet gives, it is still of great importance and may benefit us.
In this century, the system of hand phones are very needed and used a lot. Almost all people in this world have a phone because it can be used for calling, texting, and also to get through social media news. There are apps to get you talking to people in the phones. Apps like whatsapp, skype, line, snapchat, messenger, etc. News now also travels more through social media apps like twitter, instagram, facebook, tumblr, ask.fm, snapchat, etc. The teens in this century knows things happening because of the web and because of social media apps in handphones that helps them socialize and know things but it makes them have less interests in the real news in newspaper, and sending messages through mail which causes a big different in this century far from the rest because of the new technologies created throughout the years.
The waves used in a phone is radio waves, the phone needs radio wave to connect through phone with other people around the world. This radio wave is a non- ionizing radiation from the antennas that helps us connect to each other. Radio waves transports voices or data in a form of electric or magnetic fields called the electromagnetic field or EMF. The oscillation of this is called a frequency. Radio waves carries these information really fast, it is as fast as the speed of light. Cell phones transmits these radio waves into all direction and these waves can be absorbed and reflected by any surrounding object around us before actually reaching the cell tower. An example of this is when you are calling with someone. When you are calling with someone, the energy of the radio waves is transmitted to your head thus making the EMF energy lessen and being not able to communicate.
Advantages of Using Radio Wave
Advantages of radio waves can vary as having the ability to talk through people round the world and socializing with others. Calling through a phone can help us talk to the people we miss or having a important work conversation or even just to call and tell people things we need a favor from. Now, there are apps that can do this too. For example, skype is an app that helps us contact other people around the world with either Wi-Fi or data connection for free and it doesn’t only vary as voice calls but also video calls and voice/ video messages. Snapchat also cam out with a new update that can help us snap call and snap video call. It also helps us make video recordings of our life uploaded for people to see. Whatsapp which is a messaging app, also has the feature to call other people easily and so does line and other apps.
What that advantages, these radio waves in the phone also have their disadvantages. The disadvantage of this radio waves it the fact that the EMF or the transferred energy from the waves can cause cancer. When you call, you tend to put the phone in your ear and when you do that, before the radio wave goes to the signal tower, they reach your head and your brain absorbs a lot of energy from the phone and causing you to have cancer because of radiation and excess of the radio waves from the phone.
Impact of Using Handphone
The use of handphones in general also has both advantages and disadvantages to it. The advantage is it keeps people together and makes people socialize and know others from other places. It also helps us talk to people when we’re in need and have help to get us through. The apps in the handphones also tell us about the newest news that happens in the world that can appear as public economy issues and disasters. The bad thing about technology though is the fact that people gets lost in phones especially teenagers that now cant really live without a phone. The attachment to a phone makes you socialize only through phone but not through each other by talking. It changes the way you act to society and changes your personality.
Radios are used for people to communicate. Before radios, there are communication technologies like the telegram and telephone. Technologies like the telegram and the telephone used wires, to transmit the message. But because of radios, people are about to communicate wirelessly using waves. Because of communication using waves, radios solved a lot of problems.
At first, people communicated using telephone. Telephones are electrical speech machine, it uses electricity and magnet to transfer the human voice. Telephones are developed by Alexander Graham Bell and Elisha Grey in 1876. Telephones are one of the most advance ways to communicate, but it still have some disadvantages. Because of using the wire, so it wasn’t really portable.
The first theory of communication of using waves came even before the invention of wired telephones. It was created by James Clerk Maxwell, in approximately the year 1864. In his works, “the idea that made radio waves possible,” he explained how electromagnetic waves work in light and how light works in electromagnetic waves. Because of this, communication using radio waves are possible because of deleting the need of using wires. Wave transmission works by recorded sound through a microphone, then it will be turn into an electrical energy. Which, then will flow into an antenna and then the antenna will create enough power for the signal to go around the world.
The Application of Radio Waves in Communication Technology
The idea of using radio wave transmission is first developed by Guglielmo Marconi in 1901. He transmitted the first ever wireless radio wave transmission from Ireland to Canada. Because of this, he solved the problem of using wires and cables, and instead using radio waves. Because of the creation of the radio transmission, it saved the life of R.F Mathews, while he was carrying his coal, he almost hit with the East Goodwin Lightship. But because of the wireless communication, it allows the sailors to receive a warning, which then stopped them from hitting.
Because of wireless communication of the radio, people now can communicate much faster. Because of deleting the use of wires, people can now communicate portably. With the use of wires, people can only communicate from one place into someone in the other end of the wire, and the other person can also only communicate from one place into another. But now, because of communication using waves, instead of using wires, it will be easier to communicate, and it will be much faster. Because of using waves, when there is a news, people can hear about it much faster. People also can listen to music portably using the radio, instead of using the gramophone, which can only be use limitedly in one place.
Social Effects of Using Radio Waves
The radio, affected the world socially, because of radio frequency they can hear through radios. With this, they can communicate and they can get connected. It also affects the world economically, because of the radio frequencies and stations businesses, that broadcast the news and also music. Like in Indonesia there are frequencies such as Prambors Radio, Gen FM, Elshinta, etc.