I've added two more problems to the SageTeX: Derivatives page. One problem for finding the derivative of a logarithm (with Chain Rule) and one problem for the derivative of an exponential (with Chain Rule). Taking the derivative of logarithms with Sage is a bit problematic: the output of the derivative of a natural logarithm prints out as a common logarithm, so I've limited the scope of the problems to make sure the output is typeset correctly.

A link has been added to the sidebar for the CTAN mail archives. This is where you can see the new packages being added to LaTeX as well as package updates. Take a look and you'll find sesamanuel, a fresh addition to CTAN which, "....could be used to compose a student's classroom book...". This looks like a great addition but unfortunately the documentation is only in French.

Here are some issues which caught my eye:

- HuffPost tells us that mathematician John Urschel, "...The 6-foot-3, 308-pound offensive guard [who] absolutely loves math..." has come out with a paper "A Cascadic Multigrid Algorithm for Computing the Fielder Vector of Graph Laplacians.”. You can find his explanation at Forbes along with a link to the paper.
- DailyHerald is out front on the latest emerging issue: "A New Jersey student's tweet about a question on new Common Core tests was deleted after it was flagged by a testing company, spurring a national debate about how to balance children's privacy with test security in the age of social media.". Monitoring of social media is "widespread" and "commonplace" on a variety of tests. "It used to be that all students across a state took a paper-and-pencil test on the same day or days. Now children are taking the same Common Core tests in multiple states during a period lasting longer than a month. That has created a more intense test-security problem for K-12 standardized exams: If a student from New Jersey reveals questions via Twitter -- or even just the name of a poem that appears on the exam to test reading comprehension -- it could give an advantage to students in New Mexico who are still preparing to take the test."
- PRWatch looks at the corporate profits in testing, "The expanded testing has fueled a testing boom worth nearly $2 billion annually, giving the main corporations getting the testing contracts a huge return on investment for their lobbying while generating a growing backlash from parents across the country."
- The Arizona senate is getting ready to debate ending Common Core.