Hi Shyone,
I'll echo what other people have said, you are very articulate so you're clearly not 'slow'. What I expect is that you have a different learning style to many people. Rather than learning mainly through images or words, you might learn best through feeling and movement. The majority of teaching is 'chalk and talk', ie the teacher writes on the board and talks about it and the pupils are expected to sit still and absorb it! A kinesthetic pupil (one who learns by feeling and movement) needs to move their body to absorb and lock in information.
So for example, in learning the provinces of Canada, you could trace the rough shape and location in the air using your whole body of each province as you shout / sing the names. Yes looks a bit odd, but I bet it would help. Or games where you have cut out shapes of the province like a jigsaw and you have to put them together in under 60 seconds or something so you are physically moving things into place with your hands. Or use playdoh to make a map of canada and mark the important landmarks on it.
In fact as you work with children, you might find all of these fun activities to do with them too. So you all learn together.
In playing memory games with the children, rather than just looking at the picture and turning it over, you might find it useful to do something physical to lock the picture into your memory. So if you turn over a sun and and elephant. I would make big starburst signs with hands for the sun, and imgaine swinging a trunk with my arms.
I agree with the others that said it is the driver that learns the route information. I had lived in my town from when I was 18 to when I got my first car at 27 and I didn't have a clue how to get anywhere by car especially as many roads were one-way only. As a car-passenger I didn't absorb route information, it was only when I started driving that I had to work out how to get anywhere that wasn't on a bus-route.
Also IQ tests don't prove anything really. IQ isn't fixed. All an IQ test does is prove how good you have got at IQ tests! You can learn to get better at them. There are many types of intelligence and it isn't fixed.
The Nine Types of Intelligence