As a child, It is hard to remember anything in detail but I do ever trade pokemon model with the real money coin from friends as it not worth after the time pass.I sell it too cheap. 
I traded candy for pokemon cards. It wasn’t a fair exchange for the person I gave candy to because his candy was gone instantly and the pokemon cards I kept for years.
I traded an electric guitar for a sax plus some equipments for the sax. It was a pretty good trade.
One barter scenario that comes to mind is from high school. Back in high school, I was a big music fan and I was always hunting for the newest releases of albums. I had a CD burner and access to a huge library of music I had been downloading as a hobby. So with this CD burner I could make mixtapes or copies of entire albums, etc. I had the CD burner but I did not have a Car. But I this one particular friend that did have a car & a CD player. So whenever I would need a ride to the mall or wherever, he would give me a ride in exchange for me burning him a new CD of whatever artist he liked or making him a mix CD of what was popular at the time so he could listen to it in his car. I think it was a fair deal, I spent my time making those CDs & he spent his time to drive me to the places I needed to go & it was cheaper for me to spend my time on these CDs than to pay him fiat for the subsequent gas costs for driving me around.
Pokémon cards vs. Pokémon stickers.
Considering relative monetary price of each from vendors both parties agreed taking into account desires of possessing the other objects.
I traded a couple used games for a new one. This was at GameStop, and I would consider this a barter exchange because games are non-fungible, and the worth of the games essentially differ depending on the title. I thought it was quite fair at the time, since I’ve never really been the type to keep old video games laying around to begin with 
Trading cards happened quite often as a child. Wether it was sports cards or same type of gaming card like magic the gathering cards. I believe I was lucky with some of the cards as they ended up having good value of time. But usually the exchange was agreed to on fair terms.
As I child I remember trading superhero cards for marbles or vice versa. Sometimes I would get duplicate cards of heroes i already had so would exchange them with someone who didn’t have that particularly one for marbles I didn’t have in my collection. I thought it was a fair trade because we all ended up getting rid of what we didn’t want for what we wanted in our collections.
Describe a barter transaction that you’ve been a part either as a child or adult.
List the two items in the barter transaction and, looking back, did you think it was a fair exchange and why?
Pokémon Cards - trading more than one card for a card that is perceived to have greater value (by myself).
I use tu exchange Nintendo games with friends. Sport cards too. It was fair
When I was a child, I use to buy my toys with my parents money that they gave my to buy my meal at the school, so I was saving money for toys, toys that I would negotiate the price for because most of them where my friends old toys but in a good shape. From that time I was learning the art of commerce, buying and selling things.
I was trading PSP game cartridges.
I think everything was fair, although I did not know their real cost)
My recollection of barter trade as a kid has to do to with collecting stamps and exchanging duplicates against others I did not have. As I got a little bit deeper into collecting, I bought catalogs which listed the “market value” of the stamps, which allowed me to make more informed barter trades, and sometimes make some good bargains.
i gave someone a mower in exchange for mowing my yard. i feel like someones hard work is worth its weight in items.
If this counts as barter. Mom and Pop stores in India many a times were short of change and offer candies (toffees as they are called there) in return. Unfair from my perspective.
Currently I use a friend’s washing machine in exchange for looking after their dogs. Fair exchange they are both things we need.
My first of many barters was with my dad. I provided labor for the use of his lawn mower so I could mow other peoples yard for money… This was actually quite profitable in my early teens.
When I was a child, I remember I used to barter collectable swap cards from WWF and Garbage Gang Cards back in Primary school. Some cards were more valuable and scarce but i guess it was dependent on how much my old school peers wanted the card being bartered. I had also swapped a soccer ball for a skateboard which I had particularly liked. That was a fair exchange.
As a kid, Beyblades were pretty popular. I would sometimes trade Beyblades for Pokemon cards. In hindsight, the value of Pokemon cards lasted much better than Beyblades. It was a better trade for my receiving the Pokemon cards.
There were many times as a kid where i would trade cards, such as Pokemon, with my brother. Because i didnt have a sense of the real value behind the cards and only wanted the one my brother had, i would willingly trade multiple cards for the one.
Today, my brother now has the whole original collection… and i supplied him with all the cards he needed hahaha. Not fair in any sense of the word.