28 What do you say to students who want to apply Banach-Tarski theorem in practice? 2014-04-06T13:52:41.777

18 How to motivate equivalence classes 2014-04-09T00:47:13.243

17 How can I familiarize elementary school students with infinities larger than $\aleph_0$? 2014-03-23T13:03:54.853

16 What is a number? 2014-07-28T00:03:32.920

14 Cognitive traps in very early set theory 2017-11-13T21:26:54.253

11 What to teach in Set Theory & Logic Course 2015-06-18T01:40:23.667

8 What caused the (relatively) recent popularity of set theory? 2014-08-18T14:32:54.127

5 Cartesian product set 2014-11-18T21:09:31.287

5 Why is set theory not taught at the outset of math education? 2017-12-18T03:19:33.163

4 On using different notations for the same objects 2014-08-21T03:32:16.737

3 Examples of cultural limitations on math education 2014-07-31T19:00:06.850

1 References help 2015-01-07T03:27:43.773

1 Determining sets to show sufficiency of a condition? 2016-07-18T04:25:15.303

-3 How can I convince my brightest student of Cantor's theory? 2017-07-09T14:12:47.470