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: Applications and interpretation
IB DP Category 2
Barcelona, Spain, 14 - 16 February 2025
Find out more
Mathematics
IB MYP Category 2
Paris, France, 21 - 23 February 2025
Find out more
Mathematics: Analysis and approaches
IB DP Category 2
Berlin, Germany, 28 February - 2 March 2025
Find out more
Find all InThinking Workshops at
inthinking.net
Subscriber comments
Ewa
HL Functions - Exam Questions
Thanks for such a speedy response, Oliver! Much appreciated ;)
Oliver
HL Functions - Exam Questions
Hi Ewa, thank you, I agree 👍 I'll update the solutions this week-end with this second option of k = 4.00614 (4.01 to 3sf) which would then give a height of 2.91m for peg 'B' (to 3sf) in part (c).
Ewa
HL Functions - Exam Questions
Hi! I have just been working through Q2 about the LED lights and have a question. Why is the solution for k only 0.25? When I solve this on the GDC, I can see 4 intersection points. I can convince myself that the negative solutions for...
Jim
Samples Apples & T-tests
Thank you Man Yee, Fixed, Thanks, Jim
Jim
SL Tangents & Normals
Thanks Emily! I'll put that right - they should be with the tangents questions I think. I'll reorganise. Thank you for pointing that out! Jim
Jim
SL Linear correlation
Thanks Autumn, well spotted - corrected now and on the answers
Man Yee
Samples Apples & T-tests
A question in part 1, are those "Sample 2"s actually "Sample 1", "Sample 2", "Sample 3", "Sample 4", etc? Thank you!
Emily
SL Tangents & Normals
Greetings. Thank you for the worksheets! I wanted to point out that the Answer Key is blank for page 2 of the "Gradients at a point" worksheet.
Autumn
SL Linear correlation
oh sorry, I meant that on the Scattergraphs document that is under the Linear Correlation - practice link above.
Autumn
SL Linear correlation
I think there's a typo on Set 4...IMR should be number of 0-5 year olds dying per 1,000, not 100? (data values over 100 don't make sense otherwise?)
Load more
Loading...