I do not have to back to my childhood. I have bee hives and often exchange that good to other stuff from people that are keen on barter exchange.
My first year trade did make me happy at first move, but later that winter it appeared that Im out of my honey and that I was unhappy as good I traded for were gone and also my honey product. So here comes supply and demand throught the time 
A.
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?
Here it’s pretty common to trade something you would throw away such as unused clothing for a pack of coffee. I think it’s pretty good deal when you get rid of something you don’t use and get some coffee.
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?
When I was in Highschool I needed a car and my grandfather had offered to buy me one however I didn’t want any hand outs. So I offered to build him a patio since I had heard him talking about it with the family the week before. The car I received was worth a bit under 5k and the huge custom patio I built him that summer was valued right around the same price making it a very fair barter.
I was offered, since I was looking to sell one of my old guitars, to trade for a different guitar. Normally, it would be a fair trade, but I wanted to get rid of my guitar rather than taking on another one, so I had to decline.
When I used to work at a gas station, I used to give a beer to a guy, so in return he would clean the restroom.
According to me, It was a fair exchange in a way that he would get his stuff and I would have my work done.
Pokemon cards trading energy cards for certain other pokemon… i guess it would be a fair exchange as the monster cards went up in value whereas the energy ones didnt
I remember exchanging Yu-gi-oh cards at school. I believe was a fair transaction as both parties involved in the transaction wanted what the other one had.
I exchanged Street Fighter cards like give a whole bunch of them for a rare card i didn’t own yet till I completed the collection. I do think it was a fair transaction cause all the cards I was offering I had them double or tiple times while the rare ones when up for grabbing were valuable to me to get even when giving a whole bunch for a single card.
In my early school years my class mates and I would trade marbles. The rarer marbles such as a blue moon marble were sometimes traded for 3 or 4 of a more common marble like a cats eye. Tom toms which were the larger marbles could also be traded for many of the smaller marbles even if the tom tom was in poorer condition. We all believed this trading was fair or we simply would not have agreed to it.
I did not have experienced a pure barter, as a child or as an adult. Between friends maybe some sort of exchange, maybe weddings are a good examples or gift exchanges during birthdays. I cannot assess the fairness in these situations, I do not give with the expectation to receive something of the same value.
As a teen I bought a beige jacket that was a tiny bit too small
My smaller friend had a beige jacket that was a tiny bit too large
We exchanged the jackets and were happy.
It was fair because the jackets had a similar value to us.
Both were warm and beige. To us it felt like we had to do it.
I had many barter transactions as a kid and adult, not having money as a kid or being mostly broke and still wanting things i had to try something. When i found out some things i didn’t like some other people did i definitely saw the value in that.
From trading Football stickers, Pokémon cards and digital assets or even swiss rolls for yoghurt. all those transactions i feel like each end had a good deal in their own eyes.
whether we swapped stickers we each didn’t have that were of similar provenance. if i was tired of dry ass swiss roll and wanted a tangy yogurt. swiss roll was chocolate so the other person loved it and i got to feel the strange sensation that happens with your tongue when you eat yogurt. Win win.
i can still remember the time when we exchanged soccer tickets every day in the playground. For example, 2 silver against a golden, because the golden was rarer than the silver, we were already aware at that time that the value is higher. The principle of supply and demand
I can give a perfect example from current day times… when you go into VIDEO GAME store and take back a gamer… well when they were all on disc you could trade that in and get another game of equal or less value and either pay the difference or get store credit (Barter)
A barter transaction i remember as a child , i had 1 rare pokemon card holographic mewtwo
i traded it for scooter. Looking back it seemed to be the better deal for myself because i gained some wheels to get around, but now seeing how rare pokemon cards are today ,the deals not so fair now.
Lmao some of these are hilarious. I remember in kindergarten I somehow managed to trade a packet of sultanas for a Wagon Wheel (if you don’t have these overseas, they are like a chocolate wheel with biscuit, marshmallow and jam). To this day not sure how I pulled that off 
More recently I have traded piano lessons for babysitting with a friend.
During my childhood playing marbles during school recess was extremely popular. There were endless types and sizes of marbles available. Kids would negotiate and trade marbles amongst each other. I personally valued larger glass marbles more than regular sized marbles of any type. During 3rd grade I clearly remember a 2nd grader convincing me that regular/smaller marbles were actually more valuable. I ended up giving up my most prized large glass, multi coloured marbles for his “pure” glass regular sized marbles. I still feel cheated to this day…
In elementary school we used to exchange portions of our lunch packs. We brought with us home cooked meals which we would exchange, especially if our parents gave us the same food back to back for several days. Most of the time it would be a fair a trade, until you exchange for something which wasn’t very well cooked.