Final answer:
Jacob remembered the phone number using rehearsal, which is the repetition of information. This strategy helped to retain the number in his short-term memory. Other techniques like chunking, mnemonic devices, and elaborative rehearsal can also enhance memory retention.
Step-by-step explanation:
Jacob was able to keep the phone number active in his short-term memory by using rehearsal, which is the conscious repetition of information to be remembered. By repeating the phone number over and over in his head, Jacob employed a memory-enhancing strategy to ensure the information remained available in his short-term memory until needed. This process illustrates how rehearsal moves information from short-term memory to long-term memory, particularly when the repetition is active and focused.
Other memory strategies include chunking, which organizes information into manageable bits or chunks, and mnemonic devices, which are memory aids that help us organize and encode information for easier recall. These strategies are beneficial for remembering various types of information, such as phone numbers, mathematical formulas, or the order of planets in the solar system.
To further solidify information in memory, elaborative rehearsal can also be used. It involves not only repetition but also linking new information with knowledge already stored in memory, thereby facilitating deeper processing and better retention.