Mathematics Educators Weekly Newsletter - Thursday, January 29, 2015

Mathematics Educators newsletter

Top new questions this week: Simple "real world" L'hopital's rule problem? I am on a team which is writing a set of lecture notes for differential calculus. I am using a format of "Break ground" which poses a problem, "Dig in" which develops the tools to solve the ... calculus examples   asked by Steven Gubkin 15 votes answered by Aeryk 9 votes How to explain the difference between the fraction a / b and the ratio a : b? I found it difficult to explain the difference between the fraction a / b and the ratio a : b. This subject is for pupils of grade 5. So is there a real difference between them and how to explain the ... undergraduate-education primary-education fractions   asked by Abdallah Abushrekh 5 votes answered by Karl 2 votes How to estimate the time needed to solve a basic mathematics problem I want a way to know the time needed to solve addition, subtraction, multiplication and division problems. Examples $15 + 10$ $500 - 132$ $10 \cdot 10$ $20 \, / \, 10$ Is it possible to create a ... primary-education   asked by Peter 4 votes answered by Chris C 3 votes Secondary mathematics literacy I am looking for a good 'app' that enables students to chat to one another to work on mathematics problems. The idea is that like in the old days students would work on the phone to solve problems ... secondary-education mathematical-pedagogy technology-in-education interactive-teaching   asked by Proudfoxglove 3 votes answered by nickjamesuk 0 votes Political complications following from oral examinations in the British university system? In an interesting (and, perhaps, controversial from some viewpoints) text Calling a spade a spade: Mathematics in the new pattern of division of labour, Alexandre Borovik describes changes in the ... oral-exams cultural-differences   asked by Pasha Zusmanovich 3 votes answered by Neil Strickland 4 votes How to help my students form study groups during office hours? As a TA I always try to get students to help each other during office hours, because when I was in college I never had people to work with, and I strongly believe college is a lot more fun if you have ... office-hours friends study-groups   asked by Ben Bitdiddle 2 votes answered by DavidButlerUofA 2 votes Show me the money Apologies for the crass title. However, there are incentives for many children in grades (comparable to the U.S.) 3-12 to learn to do arithmetic well. (I recall Number Sense and related contests ... student-motivation concept-motivation   asked by Gerhard Paseman 1 vote answered by Joseph O'Rourke 0 votes Greatest hits from previous weeks: The definition of natural log and e I'm asking this question from the point of view of an introductory non-rigorous calculus instructor. Calculus textbooks have different approaches about how to define $e$ and $\ln$. For example, my ... undergraduate-education secondary-education calculus definitions   asked by Chris Cunningham 16 votes answered by DavidButlerUofA 14 votes Examples of Innumeracy I read Innumeracy by John Allen Paulos and would like to share more up-to-date and relevant examples of innumeracy to motivate my grade 8, 9 & 10 students. Are there any websites, blogs, books, ... examples student-motivation   asked by David Ebert 14 votes answered by David Steinberg 17 votes

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