InThinking Subject Sites
Subscription websites for IB teachers & their classes
Disclaimer: InThinking subject sites are neither endorsed by nor connected with the International Baccalaureate Organisation.
IB Approved Workshops
Mathematics
IB MYP Category 2
Online (IB Approved), 11  13 February 2022
Find out more
Mathematics: Applications & Interpretation
IB DP Category 2
Online (IB Approved), 11  13 February 2022
Find out more
Mathematics: Analysis & Approaches
IB DP Category 2
Online (IB Approved), 11  13 February 2022
Find out more
Virtual ThinkIns
Keys to success: DP Mathematics IA  the Exploration
Virtual ThinkIn, 27  28 January 2022
Find out more
Keys to Success: The Extended Essay in DP Maths
Virtual ThinkIn, 7 February 2022
Find out more
Find all InThinking Workshops at www.inthinking.net
Tweets View all
 Jim Noble
@teachmaths 03 Nov 07:37RT @fionajw: For anyone interested which of @samira_mian wonderful YouTube tutorials I used for each design I constructed over #GeoInkTober…  Jim Noble
@teachmaths 31 Oct 18:08So easy to miss some of these doors and ceilings at #alcazarseville #realalcazar #amazing https://t.co/1Q4u1FSaBx  Jim Noble
@teachmaths 31 Oct 18:04@mssallyward @GeomeTribal Just so fascinating to look at!  Jim Noble
@teachmaths 31 Oct 17:55@Montsalvage @GeomeTribal So lovely!  Jim Noble
@teachmaths 31 Oct 13:46Enjoyed having a go at this one before looking for it at #realalcazar Seville thanks to tutorial from @samira_mian https://t.co/F43v0GuXNn  Jim Noble
@teachmaths 31 Oct 13:41Andalusia is like Disneyland for tile lovers! These from an exhibition at #alcazarseville some dating back to 12th… https://t.co/ILKaVoxDdp  Jim Noble
@teachmaths 23 Sep 20:30RT @jamestanton: IB teachers:INTHINKING offering two workshops on the newchallenging!matrix theory content: evectors & evalues,Markov p…  Jim Noble
@teachmaths 18 Sep 07:22RT @G_S_Bhogal: My peoples, the time has come for a MEGATHREAD. In 40 tweets I will explain another 40 concepts you should know. Strap in…  Jim Noble
@teachmaths 08 Jul 19:0018 https://t.co/nRfIM9rupS  Jim Noble
@teachmaths 08 Jul 09:56Tropical tessellating #draincoverchat ? https://t.co/ze4WE1ichv  Jim Noble
@teachmaths 24 May 07:57RT @davidporas: I asked Ss why they think we spent so much time exploring and proving formulas rather than memorizing. This answer is my fa…  Jim Noble
@teachmaths 21 May 20:01RT @ATMMathematics: Fantastic resource for teachers, Pattern Blocks by @Simon_Gregg Activities to address key areas of the curriculum, with…  Jim Noble
@teachmaths 17 May 17:32@becky_k_warren @annemathswatson and its done with classroom teachers on the review team....  Jim Noble
@teachmaths 04 May 18:33@ajonesMWHS sorry  try now....  Jim Noble
@teachmaths 04 May 14:38@ajonesMWHS https://t.co/0CJ1Ibvx1l here it is...  Jim Noble
@teachmaths 04 May 05:06@ajonesMWHS Yes! Will share later today ...
Subscriber comments

Hmmm  always possible. Thanks for spotting, I'll have a good look, thanks Michael

I think that some of the slides with the cumulative frequency curves have inaccurate data values.

Hmmm, Hi Miguel, sorry you are struggling with this, can I check the obvious about making sure you select the correct class to assign in it to? Students should see it on their dashboards. Is it just this page or have you had this problem with...

Hi. When I assign a task to a class, it does not appear on the task list for the student so they don't know they hava a task to complete. Any advice on how to fix this?

This is so confusing

Hi Peter,This sounds great and a perfect opportunity for your student to see the mathematics in a very real context. We have some good stuff from author Peter Morris on SIR models here if that is a help! My only nagging thought about pandemic...

Dear team it would be helpful if you could create a set of questions and and marking scheme separately for AI HL students.

Hi Jim, have a student who is interested in using the S I R model to investigate the spread of COVID. It might be possible to use the model to predict the increase in infections for different countries up to December 2020. The model...

Thanks Jimmy for sharing & posting.

HP Prime has an unacceptable rounding issue... Try calculating the birthday paradox compliment e.g. (365!/342!)/365^23 Since it rounds the numerator to 1. Or the sqrt(2)^2

There are some slight errors with the Venn Diagram worksheet. On # 3 there is an on V in the middle column where you have the intersection of 3 sets. In #4 the middle column has MS as a set when MS is not a part of the sets. It is correct on...

Hi Peter, absolute functions appear in the prerequisite knowledge and in the Guide's notation list. Whilst no knowledge of 'absolute function' (as required in analysis/legacy HL ) appears in the syllabus, it looks like students are expected...