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2. Khan Academy - Wikipedia

   en.wikipedia.org/wiki/Khan_Academy

   Reading positive responses in USA Today prompted Khan to incorporate Khan Academy in 2008 and quit his job the same year to focus full-time on creating educational tutorials (then released under the name Khan Academy) [11] Khan Lab School, a school founded by Sal Khan and associated with Khan Academy, opened on September 15, 2014, in Mountain ...

3. Mathematics education in the United States - Wikipedia

   en.wikipedia.org/wiki/Mathematics_education_in...

   Mathematics education in the United States varies considerably from one state to the next, and even within a single state. However, with the adoption of the Common Core Standards in most states and the District of Columbia beginning in 2010, mathematics content across the country has moved into closer agreement for each grade level.

4. Academic grading in the United States - Wikipedia

   en.wikipedia.org/wiki/Academic_grading_in_the...

   In some places, .25 or .3 instead of .33 is added for a plus grade and subtracted for a minus grade. Other institutions maintain a mid-grade and award .5 for the grade. For example, an AB would receive a 3.5-grade point and a BC would receive a 2.5-grade point.

5. Mathematics education - Wikipedia

   en.wikipedia.org/wiki/Mathematics_education

   Discovery math: a constructivist method of teaching (discovery learning) mathematics which centres around problem-based or inquiry-based learning, with the use of open-ended questions and manipulative tools. [23] This type of mathematics education was implemented in various parts of Canada beginning in 2005. [24]

6. Teen shooting suspect charged in Orlando Halloween horror ...

   www.aol.com/teen-shooting-suspect-charged...

   The teen’s mother showed up in court this weekend — instead of him — to answer the initial juvenile charges. Jaylen Dwayne Edgar, 17, was charged as an adult in connection to a mass shooting ...

7. How to make sure texts and calls are encrypted after the FBI ...

   www.aol.com/news/sure-texts-calls-encrypted-fbis...

   Importantly, the corporate owner and the operator of the app don’t have access to that key, so they won’t be able to unscramble an encrypted message even if a court demands it or it is hacked.