Mathematics Educators Weekly Newsletter - Thursday, March 31, 2016

Mathematics Educators newsletter

Top new questions this week: How can I teach the concept of before and after a given time I'm teaching my 6 year old how to tell the time. She can read analogue clocks comfortably. We want her to be able to tell the time so when she wakes, if the time is past 6:15 then she is allowed to ... primary-education   asked by Dave 9 votes answered by Daniel R. Collins 6 votes Necessary trigonometric identities for k-12 students Which trigonometric identities are necessary for the k-12 student? I want to make a list of trigonometruc identities for k-12 student. My list is below, please help me to improve the list by ... secondary-education trigonometry   asked by Khosrotash 5 votes answered by user52817 3 votes Alternative limit for e I have recently worked with some students motivating the development of $e^t$ and $e^{t i}$ as summing change over time, basically informally solving differential equations. My motivation for this is ... undergraduate-education secondary-education calculus definitions   asked by Richard 5 votes Functions can be divided into odd and even components - name of theorem? I'm explaining to a student that all functions can be divided into odd and even (symmetric and anti-symmetric) components. It is easy to prove (basic algebra or Taylor series) but is not referenced in ... undergraduate-education secondary-education calculus   asked by Richard 3 votes answered by Adam 6 votes suggestion for probability and stats text to suit my learning style. I am of a mature aged learner and want to learn probability and statistics at a senior high school (k12) and undergraduate level for my own general understanding. I have discovered in the past that I ... textbooks general-pedagogy self-learning statistics probability   asked by hgtest35 2 votes answered by Daniel R. Collins 0 votes Defining/introducing vectors informally A vector is a collection of elements whose order matters. If the elements represent comparable measurements it can be said that they together represent a direction and a magnitude (length). The ... linear-algebra   asked by snoram 1 vote answered by Rory Daulton 4 votes How do you segment your classroom time? (Secondary Ed.) If you segment each class period regularly, what is your method? For example, do you always do a 10 min HW check, a 15 minute review, a 25 minute lesson, then a 10 min learning assessment? Do you ... secondary-education time-management   asked by Andrew 1 vote answered by celeriko 1 vote Greatest hits from previous weeks: Justifications for: Why learn mathematics? I wonder how you teachers walk the line between justifying mathematics because of its many—and sometimes surprising—applications, and justifying it as the study of one of the great ... mathematical-pedagogy student-motivation   asked by Joseph O'Rourke 26 votes answered by MintChocolateIceCream 19 votes How to explain the flipping of division by a fraction? This question is inspired by @DavidButlerUofA's discussion of "$\div \frac{2}{3}$ as $\times \frac{3}{2}$" in "Are fractions hard because they are like algebra?" Q. How can one best convey to ... primary-education fractions   asked by Joseph O'Rourke 25 votes answered by mweiss 28 votes

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