In order to learn you need to follow the argument as you read. With an important text, you should slow right down and take it bit by bit. Here is a student describing how he tackled a particularly challenging chapter:

This intensive kind of reading is at the oppo
Author(s): The Open University

15.097 Prediction: Machine Learning and Statistics (MIT)
Prediction is at the heart of almost every scientific discipline, and the study of generalization (that is, prediction) from data is the central topic of machine learning and statistics, and more generally, data mining. Machine learning and statistical methods are used throughout the scientific world for their use in handling the "information overload" that characterizes our current digital age. Machine learning developed from the artificial intelligence community, mainly within the la
Author(s): No creator set

â€˜The whole is more than the sum of its partsâ€™ is a good place to start thinking about systems. A car is more than its individual components. We can think of a football team as being more than a collection of individual players or a family being more than a group of people who share the same name.

Each of these examples â€“ the car, the football team and the family â€“ can be seen as systems. Individual parts of a system are connected together in some way for a purpose.

Example
Author(s): The Open University

You may have met the term bit, perhaps in connection with computers. The term 'bit' is also important in communication systems. It is an abbreviation for 'binary digit'. A binary digit can have just one of two values: it can be either 1 or 0. Pulses can be represented by 1s and 0s, that is, as bits, and so it is convenient to think of streams of 1s and 0s being conveyed along the communications link.

The rate at which the 1s and 0s are conveyed is known as the data rate or
Author(s): The Open University

Fluoride ions (Fâˆ’) are rare in foods, though some are found in tea and in seafood. However, fluoride does occur naturally in some water supplies, derived from the rocks through which the water flows. Its only role in the body appears to be to help to protect teeth from decay.

The stages of tooth decay are as follows:

• bacteria live in saliva on teeth (form plaque)

• produce lactic acid â†’ dissolves calcium salts in tooth
Author(s): The Open University

The European Parliament fulfils three main functions:

• it shares the power to legislate

• it exercises democratic supervision over all EC institutions

• it shares authority over the EC budget.

The legislative and supervisory roles are based on the European Parliament's democratic legitimacy. Its members are directly elected every five years by the citizens of the EU member states.

Author(s): The Open University

"Favorite Color" from Brave New Voices, 2010
This is a live performance of "Favorite Color" by Jay Davis from Brave New Voices.   (02:30)
Author(s): No creator set

Tracie McMillan on the â€˜American Way of Eatingâ€™
To report on food sourcing and access in the United States, author Tracie McMillan went undercover, picking garlic in the fields in California and working at a Walmart in Michigan and an Applebee's in New York. She published a book about what she learned from these experiences called The American Way of Eating. Knowledge@Wharton recently spoke with McMillan about how income level affects food consumption, who controls the food we eat and why the food system might be transformed if peopl
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A focus group is simply a group of people gathered together to discuss a particular issue. They have been used in all kinds of social and market research, including political policy making. In market research for product design, a focus group might be a group of purchasers of a particular product brought together to discuss their feelings and attitudes towards the product and rival products; or perhaps their general likes and dislikes about those types of products. The intention of the market
Author(s): The Open University