mation. Working memory stores unrehearsed information for 30 to 20 seconds.
             Chunking increases the limited capacity of short term memory. It places separate pieces of information into larger chunks. Chunking is usually used with numbers and letters. For example, phone numbers are grouped into three chunks. This helps us remember phone numbers better.
             Baddeley discovered working memory consists of three components. The first is the rehearsal loop. As I discussed earlier, it involves rehearsal to memorize information. This enables us to remember sequences, letters and words. The second component is visuospatial sketchpad that receives and codes data into visual images. The last component is executive control system. It handles the limited information that people can juggle at one time as they engage in reasoning and decision making (Weiten, 1998, p. 269). This helps with reasoning and mental arithmetic.
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