Logarithms - an absolute mystery to me! I actually managed and understood Trigonometry but algebra I didn't manage well - in fact Mathematics in general I found difficult and failed my O Level first time around, but my maths teacher, albeit very nice was crap! The only time I ever got thrown out of a class was when she said to me when I told her I didn't understand was "Oh Rachel, the problem is you don't know the basics" I responded "well please teach me them" to which she replied "I can't as I do not have my books" This sent me into orbit and I said "well if you, the teacher, can't teach me without your books, what hope do I bloody have?" I was then ejected, ha, ha!
Having said that, I do reckon that my Junior School education was great (bizarrely, I was sat in the 'library' of a distant relation in Los Angeles in 1984, and flicking through Time Magazine (of which there were literally hundreds!), I came across a photograph of an example of a Junior School in Yorkshire, England - and there it was my unmistakable school hall!! My very well respected Headmaster had one hand and was both lovely and terrifying at the same time!) I also went to a generally good Grammar School, one of the very last, and I do think that I did get a reasonably good all round knowledge of stuff and can hold my own in a pub quiz! 