3 Components of Data Communications System

The 3 Components of Data Communications System

1. TRANSMITTER - Can be any circuit or electronic device designed to send electronically encoded data to another location. Can also be called the Source.
2. TRANSMISSION PATH or CHANNEL - A path or link through which information passes between two devices.
3. RECEIVER - could be any device designed to receive any conveyed message from the Transmitter or the Source. Receiver is also known as the Sink.

The Universal Seven-Part Circuit of Data Communications System.

Good Listening in Class

It is important for you to be a good listener in class. Much of what you will have to learn will be presented verbally by your teachers. Just hearing what your teachers say is not the same as listening to what they say. Listening is a cognitive act that requires you to pay attention and think about and mentally process what you hear.

Here are some things you should do to be a good listener in class.

* Be Cognitively Ready to Listen When You Come to Class. Make sure you complete all assigned work and readings. Review your notes from previous class sessions. Think about what you know about the topic that will be covered in class that day.

* Be Emotionally Ready to Listen When You Come to Class. Your attitude is important. Make a conscious choice to find the topic useful and interesting. Be committed to learning all that you can.

* Listen with a Purpose. Identify what you expect and hope to learn from the class session. Listen for these things as your teacher talks.

* Listen with an Open Mind. Be receptive to what your teacher says. It is good to question what is said as long as you remain open to points of view other than your own.

* Be Attentive. Focus on what your teacher is saying. Try not to daydream and let your mind wander to other things. It helps to sit in the front and center of the class, and to maintain eye contact with your teacher.

* Good Listening In Class, Ear Listening Be an Active Listener. You can think faster than your teacher can speak. Use this to your advantage by evaluating what is being said and trying to anticipate what will be said next. Take good written notes about what your teacher says. While you can think faster than your teacher can speak, you cannot write faster than your teacher can speak. Taking notes requires you to make decisions about what to write, and you have to be an active listener to do this.

* Meet the Challenge. Don't give up and stop listening when you find the information being presented difficult to understand. Listen even more carefully at these times and work hard to understand what is being said. Don't be reluctant to ask questions.

* Triumph Over the Environment. The classroom may too noisy, too hot, too cold, too bright, or too dark. Don't give in to these inconveniences. Stay focused on the big picture - LEARNING.

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The RQWQCQ Strategy for Solving Math Word Problems

RQWQCQ is a good strategy to use when solving math word problems. Each of the letters in RQWQCQ stands for a step in the strategy.

Read

Read the entire problem to learn what it is about. You may find it helpful to read the problem out loud, form a picture of the problem in your mind, or draw a picture of the problem.

Question

Find the question to be answered in the problem. Often the question is directly stated. When it is not stated, you will have to identify the question to be answered.

Write

Write the facts you need to answer the question. It is helpful to cross out any facts presented in the problem that are not needed to answer the question. Sometimes, all of facts presented in the problem are needed to answer the question.

Question

Ask yourself "What computations must I do to answer the question?"

Compute

Set up the problem on paper and do the computations. Check your computations for accuracy and make any needed corrections. Once you have done this, circle your answer.

Question

Look at your answer and ask yourself: "Is my answer possible?" You may find that your answer is not possible because it does not fit with the facts presented in the problem. When this happens, go back through the steps of RQWQCQ until you arrive at an answer that is possible.

Use RQWQCQ to help you correctly solve math word problems.

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