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Xander Henderson

Holbrook, AZ, USA

I am faculty in mathematics at Northland Pioneer College in beautiful Navajo County, Arizona.

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Top Questions
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93
Can area of rectangle be greater than the square of its diagonal?
math.stackexchange.com

75
Why do we need so many trigonometric definitions?
math.stackexchange.com

71
What's a replacement for "married couples" in combinatorics problems?
matheducators.stackexchange.com

58
Plagiarism or just cheating?
academia.stackexchange.com

55
"Gaps" or "holes" in rational number system
math.stackexchange.com

48
In the U.S., is it appropriate for math professors to ask students to rewrite their messy (poorly handwritten) homework to be graded?
academia.stackexchange.com

42
Why do I get a converging result when pressing cosine multiple times on a calculator?
math.stackexchange.com

41
Is it a good thing as a teacher to declare things like "Good! Things are becoming clearer already."
academia.stackexchange.com

37
What general skills must a student achieve to earn a Ph.D.?
academia.stackexchange.com

36
What should you do when asked by the chair to raise course grade distribution when the students do not deserve it?
academia.stackexchange.com

33
Why does one need to be a certified teacher to teach at secondary level and lower, but not at tertiary level?
academia.stackexchange.com

33
What is the name of the number that is being added to another number?
math.stackexchange.com

32
Is the chain rule needed at all to solve this problem?
math.stackexchange.com

32
Can we keep alcoholic beverages indefinitely?
cooking.stackexchange.com

32
How can I ask a question regarding moderator related issues if I don't have access to the Teachers' Lounge or the Stack Moderators team?
meta.stackexchange.com

32
A curiosity: how do we prove $\mathbb{R}$ is closed under addition and multiplication?
math.stackexchange.com

30
What are some simple problems that calculators get wrong?
matheducators.stackexchange.com

30
(How) Do American undergraduate math programs teach complex numbers?
matheducators.stackexchange.com

29
How do I make my blended soup a more appealing colour?
cooking.stackexchange.com

29
Data Science undergrad degree from business school isn't what I expected to be
academia.stackexchange.com

27
In a math PhD statement of purpose, should I use mathematical notation, or English, if math is likely clearer?
academia.stackexchange.com

27
Should I include high school teaching activities in an academic CV?
academia.stackexchange.com

27
Convention: Comma and period in an enumeration
academia.stackexchange.com

26
Is it rude to talk to a potential PhD supervisor who is coming to my university to give a talk?
academia.stackexchange.com

26
Do we care if term in sequence makes our step invalid when calculating a limit?
math.stackexchange.com

25
Why does this US DOI manuscript on archaeological sites have blacked-out text?
academia.stackexchange.com

25
How can I filter the solids out of my homemade pumpkin spice syrup?
cooking.stackexchange.com

25
Is it considered unprofessional to submit a grant that you will most likely decline?
academia.stackexchange.com

25
Recommendations regarding publishing 'folklore' results in math
academia.stackexchange.com

25
What's the precise meaning of the expression "induced by" in mathematics?
math.stackexchange.com

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