How to teach DS age 13 study skills

[pharmachameleon]

My DS had just turned 13 and he gets quite a lot of tests at school. Each subject has an end of topic test roughly every 2 months. At the moment he fills out the revision book (if he gets one) and tries to memorise this or he reads over the class textbook for his particular topic and I test him on each section.
Is this the way he should be studying at his age? He does quite well on his tests but I think I remember writing lots and lots of notes when I studied for exams but I may have been much older than he is now, can't remember.
Do schools teach study skills? Is there a recommended method for studying before tests/exams does anyone know?
It's not a big issue at the moment but he'll get mock exams next year so I'm just trying to prepare him.

What’s his preferred way of learning?
Does he read the information over and over again, or does he learn better if he hears it, or does he prefer a practical approach?

When you find out which is best for him, he can focus on that. Mind mapping can be very helpful too.

Thank you @Bluevelvetsofa. I have absolutely no idea what his preferred way of learning is so I'll find out.
I loved mind mapping when I was studying!

DD is 12 and her method of studying is to read over the textbook section every evening for about a week before the exam. Or if its something like maths, she does a couple of pages of practice questions every evening for about a week. For harder stuff she asks me to quiz her on what she's been reading.

For me I find it best to write everything out in my own words, the act of writing (by hand) cements it in my memory better than just reading. Then read over my notes a few times before the exam.

DS's school gave us lots of ideas and tips for revising. Ask them for guidance in the first instance.

Testing yourself/ forced recall of information has been shown to be the most effective way to study. Spreading the study of each subject or topic over time is also good (I.e returning to each subject at regular intervals, the opposite of 'cramming') Anything that involves 'active learning' is good, so passive re-reading notes is not that effective but mind mapping/ recalling key points and writing them down/ explaining is good. Good luck to your son!

Brilliant. Thanks everyone. He's got a geography test tomorrow and is reading a section then writing down what he can remember and getting on well with that.

Have a look at ncase.me/remember/ with your son. As another poster mentioned, spaced repetition is really important (and so is interleaving).

The Feynman technique- where you learn to teach, then teach yourself or someone else, recheck, and go again.

Thanks @thecatinthetwat @Cornishmumofone