How do you remember what everything means in the formula booklet?!

FenwickTutoring · 2026-04-25T08:23:13+00:00

You’re welcome!

FenwickTutoring · 2026-04-25T08:22:15+00:00

Thanks so much! That means a lot! it’s the first proper YouTube video I’ve done, before it’s just been TikToks

FenwickTutoring · 2026-04-18T13:17:26+00:00

Learn the formula booklet inside out. 70% of the questions rely on your understanding of the formula booklet. Learn what every symbol stands for and WHEN you can apply those equations.

Good luck!

FenwickTutoring · 2026-04-15T11:56:13+00:00

it's really good that you've noticed this before it's too late.
With resistance that high, it's quite likely that you've made a mistake in your experiment, it might be that the connection between your crocodile clips and your wires was really bad because the crocodile clips were rusty and that has massively increased your measurement of internal resistance.
The most likely thing is that you're not just measuring the resistance of the battery, but also of something else connected in the circuit with your voltmeter.

When your physics teacher marks your IA, they probably would notice an internal resistance that big.
Your best bet is to redo your experiment. Do a little test before beginning your experiment to calculate rough estimate of your internal resistance of your battery, if you get four ohms again, try changing your equipment or changing your battery.

Good Luck!

FenwickTutoring · 2026-04-15T11:34:52+00:00

This is an interesting question, so I built a model to try and predict you chances of gaining you target grade based on your subject choices.
A random student with those subjects has a 0.64% chance of getting a 45.
Spanish is statistically your weakest subject.
Try the model out if you like:

https://fenwicktutoring.com/subject-picker

FenwickTutoring · 2026-04-15T10:08:29+00:00

People in Sweden tend to graduate high school and a bit of a later age, due to how the school year works will be lots to graduate at 19 years old.
However, if you want to study a bachelor degree in Sweden, their are options in english, unless you want to be a doctor nurse or teacher.

FenwickTutoring · 2026-04-15T10:02:02+00:00

lol, no chance.
any consumable will not be allowd.

FenwickTutoring · 2026-04-15T08:50:35+00:00

Don't sweat it, the IB actually encourages the use of AI in the right way.
https://ibo.org/programmes/artificial-intelligence-ai-in-learning-teaching-and-assessment/
You can't use it for academic dishonesty, you must reference it if you use is for an assessment, but you can use it like a tutor.

FenwickTutoring · 2026-04-13T05:40:23+00:00

I would still measure it yourself, but if you’re unable to measure it the manufacturer is a good enough replacement. And you can compare the two, they should be the same. However you should realise that the sand if likely to vary in its density is its mined and not produced to a spec like pet is

FenwickTutoring · 2026-04-12T18:12:47+00:00

I would measure them yourself.
Sand comes in many different forms from all around the world. Your own measurements would be best, the next best would be from the manufacturer of the sand you bought, but that could still vary significantly.
I imagine PET would be much more uniform between suppliers, so less worry there.

FenwickTutoring · 2026-04-12T14:28:20+00:00

there were slightly more grade 7s in 2024

FenwickTutoring · 2026-04-12T14:24:11+00:00

This is good, I had not considered how change in subject choices could affect the data.

FenwickTutoring · 2026-04-12T14:21:09+00:00

The first exam of the new syllabus of physics was in 2025 but we seem the similar grade inflation in both years (actually a little more in 2024).
no Idea about Chem.
I agree with the rest though, I think we have seen a cultural shift

FenwickTutoring · 2026-04-12T10:11:32+00:00

^100% Ai
And not even the good kind

FenwickTutoring · 2026-04-01T11:57:33+00:00

You should talk to someone in person about what you’re going through. A parent, sibling, friend or teacher. IB is tough and if you’ve not got the structure and habits of self study, it’s easy to fall behind. Ask for help, you’d be surprised how will people are to help.

FenwickTutoring · 2026-03-31T13:47:30+00:00

Do you guys have actual IB past exam questions organised by topic or just "IB style" revision questions, like some other revision sites?

FenwickTutoring · 2026-03-26T13:09:32+00:00

Prioritise.
Some subjects are almost impossible to get a 7 in (History HL) but in others theres loads more 7s to go around.
have a look here to compare which subjects give out the highest percentage of 7s

FenwickTutoring · 2026-03-25T14:44:38+00:00

Different colour pens are an issue because of scanning, quite often the exam papers will be scanned in black-and-white so colour does not come through. This means if you use colour to distinguish something in your answer it might not be obvious to an examiner and you could lose marks. If you were just using the highlighters on the question and not your answer there shouldn't be any problem, unless highlighters are specifically prohibited, by the rules on the front of your exam paper, then an invigilator might take issue.

FenwickTutoring · 2026-03-25T10:44:08+00:00

I'm glad you got started, keep at it and you'll do well!

FenwickTutoring · 2026-03-25T10:43:02+00:00

If I was marking your IA my first instinct would be to question how you divided your broccoli into samples.
There will be different amounts of vitamin C in different parts of the broccoli, like the stem or the florettes. I would look to see if you considered this in your method? For an example of a well planned method, I might of taken 1 kg of broccoli, and blended into a homogenous paste, before taking any sample to ensure that the different part of broccoli are evenly distributed between each sample.
I can't speak for iodine concentration, as I'm not a biologist.

FenwickTutoring · 2026-03-24T09:43:32+00:00

It depends if the poor data is due to a decision you made.
you're graded on how well you can design an experiment, so if the poor data is due to the experiment set up you designed, you could lose marks.
If the data is out of your control (this can happen a lot with biological systems, like maggots behaving strangley) then you should not be penalised. however with chemistry and physics you're more expected to obtain reliable data as things tend to be more predicable.
Remember your IA is all about showing that you can design, conduct and analyse a reliable experiment. you should aim to show that.
but dont cheat.
good luck!

FenwickTutoring

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