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.
A cell phone with a network lock will only work with a SIM card from one service provider. Customers can ask their cell phone providers for their phone unlocking codes. Cell phone users may wish to unlock their phones for many reasons, including a lack of reception on a particular network.