Young mathematicians dive into the number line to discover decimals and how the numbers infinitely get smaller in between. They click the zoom button a few times and learn that the number line doesn't just stop at integers. Includes a...
But maybe you're not sure exactly what that means. An unlocked cell phone is one that is not tied into a certain carrier's network: It will work with more than one service provider. Most cell phones and smartphones are tiedâor lockedâto a certain cellular carrier, such as Verizon Wireless, T-Mobile, AT&T, or Sprint.
An unlocked cell phone is a mobile phone that can be readily used on any GSM network of the owner's choosing without having to commit to a carrier plan of any kind. This means that the owner can slide in a SIM card from any wireless carrier in his or her region to start making calls, surfing the Internet, and benefiting from any of the services available on that carrier's network for its customers.