Dan Rodriguez-Clark's Avatar

Dan Rodriguez-Clark

@interactive-maths.bsky.social

IB Maths teacher and T&L nerd. Teach at a multilingual state school in UK. Run the website www.interactive-maths.com and spinoffs.

245 Followers  |  130 Following  |  122 Posts  |  Joined: 03.01.2025  |  1.7064

Latest posts by interactive-maths.bsky.social on Bluesky

A worksheet where you answer questions and match the answers to letters to find out the hidden joke.

A worksheet where you answer questions and match the answers to letters to find out the hidden joke.

I love all the resources from @draustinmaths, they are always well thought out.

If you need more of these, you can create this type of activity with randomly generated questions on many topics on my site. Choose 'Codebreaker' as Activity Type.

generator.interactive-maths.com/maths-questi...

11.10.2025 05:29 β€” πŸ‘ 7    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
A Maths question and solution for finding the equation of a line through two points.

A Maths question and solution for finding the equation of a line through two points.

In my IB key skills generator you get full solutions. Randomly generated questions which can be turned into a worksheet or projected.

generator.interactive-maths.com/ib-aa-hl-key...

10.10.2025 11:29 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

In #MathsToday I used AI to create a set of 10 multiple choice questions on finding the equation of a line from 2 points which I could project. It worked within the AI, and we could select the answers and get immediate feedback.

Useful as a Maths activity, but also to show kids how to ise AI well.

09.10.2025 17:23 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Frequency Analysis: Breaking the Code All simple substitution ciphers are susceptible to frequency analysis, which uses the fact that some letters are more common than others to break a code.

Of particular interest might be the frequency analysis tool that can be used to break and simple substitution cipher.

crypto.interactive-maths.com/frequency-an...

09.10.2025 06:40 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Crypto Corner Crypto Corner is a website that provides detailed information on how to use a large variety of codes and ciphers. It also has a selection of flash activities to use the various codes.

National Cipher Challenge starts today. Students might want to learn about different ciphers, and I have a free website for that

crypto.interactive-maths.com

09.10.2025 06:39 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

It is great. I have done it on and off with students for 10+ years. You can either set them off and they will sort it themselves (older students) or do a weekly activity to support them. KS3 will need a bit of support, but might catch the bug and do it every year.

28.09.2025 14:48 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Frequency Analysis: Breaking the Code All simple substitution ciphers are susceptible to frequency analysis, which uses the fact that some letters are more common than others to break a code.

Need a tool to help with automating frequency analysis and breaking a substitution cipher? Perfect for the National Cipher Challenge @cipher-challenge.bsky.social

crypto.interactive-maths.com/frequency-an...

25.09.2025 06:33 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Crypto Corner Crypto Corner is a website that provides detailed information on how to use a large variety of codes and ciphers. It also has a selection of flash activities to use the various codes.

With the Cipher Challenge coming up soon from @cipher-challenge.bsky.social your students might be interested in learning about codes and ciphers. I have a website dedicated to this, which details how they work and has applets to encrypt and decrypt.

crypto.interactive-maths.com

19.09.2025 10:09 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Yes, working again thankfully

17.09.2025 19:25 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Don Steward's Median blog seems to be down 😞

Do we know anything about this? @mathsjem.bsky.social

17.09.2025 07:01 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Year 13 learned about the reverse chain rule, integrating with partial fractions and using trig identities in integrals yesterday. Including the need to always look for f'(x)/f(x). #MathsToday

13.09.2025 07:55 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

In #MathsToday year 12 worked on logs. Always like to get them to estimate log 34 as they are surprised by the result.

And year 10 did an investigation on the perimeter of regular polygons in a line.

10.09.2025 17:26 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

You can't see my projector if the lights are on!

10.09.2025 13:27 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

In #MathsToday we had 2 cakes in year 13. I always make the deal with the class that if anyone forgets the +c they have to bring cake next lesson (+cake!!!)

09.09.2025 17:51 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

In #MathsToday year 13 started integration, and year 12 did a prior knowledge test before starting the HL course!

Year 10 did an investigation into the greatest perimeter possible when regular polygons are placed adjacent.

08.09.2025 20:35 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
An image describing the different features of a website offering randomly generated maths questions.

An image describing the different features of a website offering randomly generated maths questions.

#Maths teachers! As you head back to school this week, don't forget that on my generators site you can project randomly generated questions, or create different activities, for free. #MathsToday

generator.interactive-maths.com

01.09.2025 19:40 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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AAHL Sign Up | Enhance Math Skills - Enroll Today β€” Interactive Maths Tutor Sign up for the AAHL Interactive Maths Tutor to access comprehensive IBDP AA HL courses, video lessons, practice problems, and key facts tools for advanced mathematics preparation.

If you know anybody studying (or about to start studying) the IB Maths AAHL course, then they might be interested in the new online course I am developing. Instead of paying a tutor weekly, get access to the full course.

tutor.interactive-maths.com/aahl-sign-up

30.08.2025 20:50 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Announcement that unit 1 and 2 are complete

Announcement that unit 1 and 2 are complete

A list of topics in the Functions unit

A list of topics in the Functions unit

A list of topics in the Number and Algebra unit.

A list of topics in the Number and Algebra unit.

First 2 units of the IB Maths AAHL course complete. It includes 48 individual skills, some topics listed below.

Running at a reduced price whilst it is still under construction.

Please share with any students you know doing IB AAHL who might find it useful.

tutor.interactive-maths.com/aahl

22.08.2025 08:02 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I agree, but hardly a 'new' method, surely.

Also, no sure how it extends to non-monic quadratics (havent had enough time to sit down and think it through yet).

15.08.2025 19:10 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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A Mathematician Found an Easier Way to Solve Quadratic Equations Here’s the secret.

Not sure what to think about this...

www.popularmechanics.com/science/math...

15.08.2025 15:42 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Various cave painting in red on a cave wall.

Various cave painting in red on a cave wall.

A set of dark dinosaur footprints in solid rock.

A set of dark dinosaur footprints in solid rock.

Amazing to see real life history in Spain this weekend. Yesterday we saw Dinosaur Footprints πŸ¦• and today cave paintings. Can clearly see a family of 2 adults and 4 children.

03.08.2025 10:15 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I’m looking for a standardised or diagnostic assessment tool that can be used to determine specific strength and weakness of our students, with the view to improving and intervention in maths. For years 7-11. It’s an international school.

22.07.2025 06:53 β€” πŸ‘ 0    πŸ” 2    πŸ’¬ 0    πŸ“Œ 1

🧡 Next year my team have requested CPD on using tech in lessons. eg Geogebra/ Desmos/ AI.

QUESTION 1. Can you help me by pointing me in the direction of good resources that will help me plan sessions for them on these? I’m not a technophobe but it’s not something I do enough either.

18.07.2025 04:47 β€” πŸ‘ 27    πŸ” 15    πŸ’¬ 15    πŸ“Œ 1

A new one I learned this year, in Google Chrome you can create tab groups. So I have a tab group for each class open, which I can minimise when not teaching them. Means I can keep relevant tabs open, but hidden away so it doesn't get overcrowded.

Right click on a tab and there are loads of options

18.07.2025 05:46 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

It is amazing how many people don't know that CTRL+C and CTRL+V are copy and paste. And CTRL+X is cut. Or CTRL+Z is undo.

18.07.2025 05:44 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Using the Equation Editor Shortcuts.pdf

I have one I made years ago available here on using the equation editor and some of the shortcuts.

drive.google.com/file/d/1UvC9...

18.07.2025 05:41 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 2    πŸ“Œ 0

I have updated most to JavaScript now. There are about 4 that I have not managed to get around to yet. Maybe in the next year...

13.07.2025 10:43 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Crypto Corner Crypto Corner is a website that provides detailed information on how to use a large variety of codes and ciphers. It also has a selection of flash activities to use the various codes.

My first ever coding project was on ciphers. This turned into Crypto Corner. The site hasn't had much love from me in recent years due to other projects, but still hopefully useful.

crypto.interactive-maths.com

13.07.2025 07:22 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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End of Year activities? How about a game of bingo? Or a treasure hunt? Choose one (or multiple) topics and instantly create an activity. #MathsToday

generator.interactive-maths.com/maths-questi...

12.07.2025 15:21 β€” πŸ‘ 2    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0
Three logos for websites offering different resources for teaching and learning maths.

Three logos for websites offering different resources for teaching and learning maths.

I have 3 different websites under the Interactive Maths branding. If you teach Maths, do check them out.

10.07.2025 15:48 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 0    πŸ“Œ 1

@interactive-maths is following 20 prominent accounts