Let's imagine that you are playing with two different sets of building blocks. One set is called "ido" and the other set is called "interlingua".
Just like the building blocks, ido and interlingua are two different ways to create and communicate ideas using words. Ido is a made-up language that is based on a mixture of different languages from around the world, while interlingua is a language that is based on the similarities between different languages.
Think of ido like a building block set that has pieces from many different sets. It's like taking some blue blocks from one set, some red blocks from another set, and some yellow blocks from yet another set, and putting them all together to create something new. That's what ido does with words from different languages.
Now, imagine interlingua like a building block set that has pieces that are very similar to each other. It's like taking blue blocks, light blue blocks, and dark blue blocks from the same set, and arranging them in different ways to create new things. That's what interlingua does with words from different languages.
So, both ido and interlingua use pieces from different languages to create new ways of communicating. But ido uses a bigger variety of pieces, while interlingua uses similar pieces that can be arranged in different ways.
Overall, both ido and interlingua are useful tools for communicating with people who speak different languages, just like building blocks can be used to create different structures. It's up to you to decide which set of blocks you like to use better!