- I'm Pippa.

- And I'm Phil.

- What was your favorite game when you were a child, Pippa?

- I think my favourite game was skipping with a skipping rope.How about you?

- Well, I could never skip,so I think I just preferred playing football.

- Ahh! Well that's a good game to play in the playground.

- Eighty years ago,it was quite common for children in British's cities to play in bombsites,the ruins of houses which had been destroyed in World War II. Today the idea is back in fashion,with kids playing not in bombsites but in 'junk playgrounds',also called 'adventure playgrounds'. In contrast to pre-made playgrounds, where swings and slides are fixed in place, adventure playground provide pieces of building materials for kids to build things themselves.

- Reporter William Kremer went to see such playground in Wreham, North Wales, for BBC World Service programme People Fixing the World: At first glance, the land is little more than a junkyard. There are stacks of used wooden pallets and big reels for holding wires. But if you look a little bit closer, you'll see crooked homemade structures, hidey-holes and turrets. Children run barefoot. They swing on ropes and throw themselves down a makeshift water slide.

- At first glance, William sees only junk. The phrase at first glance means looking at something for the first time, before having a chance to look more carefully.

- Adventure playgrounds are indeed full of junk: pieces of construction material like old tyres, planks of wood and length of rope. But look closely and you'll see children using the junk to play, building dens and hidey-holes. A hidey-hole is a small place for hiding things or in this case, for children to hide themselves.

- In this episode we'll be hearing how adventure playgrounds are giving kids the freedom and space to play. As usual, we'll be learning some useful new words and phases. And remember, you can find all of this episode's vocabulary, along with the transcript, on our website, bbclearningenglish.com.

- But now I have a question for you, Pippa. We know that adventure playgrounds started off after the Second War II, but in which country? Was it A: France, B Germany, or C Denmark?

- Hmm ... I think maybe France. I think French children maybe were very adventurous.

- OK, well, we'll find out the answer to that question later in the programme. Adventure playgrounds give kids the freedom to choose how they play. According to child development expert Dr Anna Housley Juster, this freedom is vital, as she explains here to BBC World Service's People Fixing the World: It's true. We do tend to minimise play in certain ways, but actually after the most basic needs are met for children, so, food, shelter, water, safe place to be, play is by far the most important factor for healthy child development.

- Anna thinks play is as important as a child's basic needs, like food and safety, but unfortunately the importance of play tend to be minimised. If something tends to happen, it happends often and it likely to happen again.

- Anna says that after a child's basic needs are met, play is by far the most important factor in a healthy childhood. She uses the phase by far means by a great amount. For example, Your teacher might say: "You're by far the best student in class!"

- The freedom to take controlled risks in a safe environment is what Anna calls 'self-directed play'. Here, she explains more to Myra Anubi, presenter of BBC programme People Fixing the world:

- So, what you're saying is letting kids play... free play actually, or play on their own and, kind of, come up with the ideas, that's really crucial for their development.

- It's one hundred percent crucial for their development. In... what I meant when I said that it's protective is that kids build resiliency, confidence, coping strategies, regulation strategies. So many of the skills that we know lead to healthy human development are developed in play.

- Myra mentions the importance of free play and Anna says it's one hundred percent crucial, meaning completely. You can also say, "One hundred percent", as an informal response to mean: "Yes, I agree with you completely."

- Adventure playgrounds have lots of small dangers: hard pieces of wood, sharp metal, nails. According to Anna, taking small risks when play with these makes kids more resilient and building coping strategies, a term for the psychological ways children develop to manage challenging situations. And Phil, I think it's time for the answer to your quiz questions.

- Yes, I asked you in which country adventure playgrounds started. You said France, but I'm afraid the correct answer was Denmark. The were introduced by Danish architect Carl Theodor Sorensen. OK. Let's recap the vocabulary we've learned, starting with the phrase at first glance, when you see something quickly, without a chance to consider it more carefully.

- A hidey-hole is a small place for hiding things in, or hiding yourself in.

- If people tend to do something, they do it often and will probably continue to do it in the future.

- The phrase by far means by a great amount.

- Saying on hundred percent means completely and can be used to emphasise a statment or show that you totally agree with it.

- And finally, coping strategies are psychological ways of managing your emotions in challenging situations. Once again, our six minutes are up, but remember, you can find many more trending topics, plus a quiz and worksheet for this episode, on our website, bbclearningenglish.com. Hope to see your here soon, but for now it's goodbye.

- Goodbye!