user16549: I am interested in teaching young kids how to build arduino projects. I was thinking that using a breadboard may be difficult for them, as the holes are all very close together. It is easy to put the pins in the wrong hole.
Are there any breadboards with larger hole spacings that could make it easier to use for kids?

user10135: Build your own breadboard!
Literally, a wooden board with a grid of small woodscrews screwed into it, each screw holding down a cup washer.
Connections are made by trapping component leads and wires under the edge of the cup washer before screwing it down.
You need components with reasonably long leads, and it might still be necessary to solder longer wires to the leads in some cases.
I am told that in the olde days, this is how hobbyists used to do it...
Here's a link to an example (I read a copy of this book as a kid):
http://www.mds975.co.uk/Content/george_dobbs_trf_radio.html

user8033: The problem (probably) isn't only because it's too small, wiring can be hard to understand.
I think this might be a solution:

It'll cost you some work. But it will get difficult for them to wire it wrongly.
Also, I believe coloring them, will make the kids understand it much better. This way they would also be less likely to short out pins etc. Saving you some rangers/arduinos.
Be sure that the power-connectors are not reversible. And you should use a separated supply (with overcurrent protection and what not) and tie the GND to the arduino GND. This way you could even use the supply power for heavier devices.
I'm not a 100% sure on the resistors though, they might interfere with some things you want to make/show.
Maybe even add blue color for inputs and yellow for outputs (or whatever the standard is). Or you might even make generic connectors, like on the Lego NXT robots, that's some really easy wiring! http://www.philohome.com/nxtldraw/NXTkitLDview.jpg
Or check out projects like: "LittleBits Arduino".
https://s3.amazonaws.com/lb-spree/spree/products/2003/large/ArduinoDetail4.png?1423167488
And, check http://www.rugged-circuits.com/ruggeduino/ on 10-ways to destroy your arduino. If you take these things into mind, you can make a pretty solid Arduino, so that wrong wiring won't lead to any damaged Arduino's etc.

user2881: 
or

or
Maybe use something like Littlebits, which uses magnets, but is kind of expensive.

user6740: Breadboards are made to work with components of a standard size - a breadboard with larger hole spacing would not be able to fit standard through-hole chips. I have never seen such an item.
Having said that, I have had a lot of success using alligator clips. You can clip them directly on to wires for LEDs, resistors, capacitors, so long as you make sure they legs/clips don't touch.
Then there are made-for-children systems, snap-together, like http://www.vk3bq.com/2013/08/17/snap-circuits-electronics-kits/ or http://mashable.com/2013/05/21/lightup-magnetic-building-blocks/#t5Kq_yIDpaqr

16549: <p>I am interested in teaching young kids how to build arduino projects. I was thinking that using a breadboard may be difficult for them, as the holes are all very close together. It is easy to put the pins in the wrong hole.</p>

<p>Are there any breadboards with larger hole spacings that could make it easier to use for kids?</p>
 10135: <p>Build your own breadboard!</p>

<p>Literally, a wooden board with a grid of small woodscrews screwed into it, each screw holding down a cup washer.</p>

<p>Connections are made by trapping component leads and wires under the edge of the cup washer before screwing it down.</p>

<p>You need components with reasonably long leads, and it might still be necessary to solder longer wires to the leads in some cases.</p>

<p>I am told that in the olde days, this is how hobbyists used to do it...</p>

<p>Here's a link to an example (I read a copy of this book as a kid):
<a href="http://www.mds975.co.uk/Content/george_dobbs_trf_radio.html" rel="nofollow">http://www.mds975.co.uk/Content/george_dobbs_trf_radio.html</a></p>
 8033: <p>The problem (probably) isn't only because it's too small, wiring can be hard to understand.</p>

<p>I think this might be a solution:
<a href="https://i.stack.imgur.com/d8law.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/d8law.png" alt="enter image description here"></a></p>

<p>It'll cost you some work. But it will get difficult for them to wire it wrongly.
Also, I believe coloring them, will make the kids understand it much better. This way they would also be less likely to short out pins etc. Saving you some rangers/arduinos.</p>

<p>Be sure that the power-connectors are not reversible. And you should use a separated supply (with overcurrent protection and what not) and tie the GND to the arduino GND. This way you could even use the supply power for heavier devices.</p>

<p>I'm not a 100% sure on the resistors though, they might interfere with some things you want to make/show.</p>

<p>Maybe even add blue color for inputs and yellow for outputs (or whatever the standard is). Or you might even make generic connectors, like on the Lego NXT robots, that's some really easy wiring! <a href="http://www.philohome.com/nxtldraw/NXTkitLDview.jpg" rel="nofollow noreferrer">http://www.philohome.com/nxtldraw/NXTkitLDview.jpg</a></p>

<p>Or check out projects like: "LittleBits Arduino".
<a href="https://s3.amazonaws.com/lb-spree/spree/products/2003/large/ArduinoDetail4.png?1423167488" rel="nofollow noreferrer">https://s3.amazonaws.com/lb-spree/spree/products/2003/large/ArduinoDetail4.png?1423167488</a></p>

<p>And, check <a href="http://www.rugged-circuits.com/ruggeduino/" rel="nofollow noreferrer">http://www.rugged-circuits.com/ruggeduino/</a> on 10-ways to destroy your arduino. If you take these things into mind, you can make a pretty solid Arduino, so that wrong wiring won't lead to any damaged Arduino's etc.</p>
 2881: <p><a href="https://i.stack.imgur.com/Fqs65.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Fqs65.jpg" alt="enter image description here"></a></p>

<p>or</p>

<p><a href="https://i.stack.imgur.com/1H0Os.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/1H0Os.jpg" alt="enter image description here"></a></p>

<p>or</p>

<p>Maybe use something like <a href="http://littlebits.cc/" rel="nofollow noreferrer">Littlebits</a>, which uses magnets, but is kind of expensive.</p>
 6740: <p>Breadboards are made to work with components of a standard size - a breadboard with larger hole spacing would not be able to fit standard through-hole chips. I have never seen such an item.</p>

<p>Having said that, I have had a lot of success using alligator clips. You can clip them directly on to wires for LEDs, resistors, capacitors, so long as you make sure they legs/clips don't touch.</p>

<p>Then there are made-for-children systems, snap-together, like <a href="http://www.vk3bq.com/2013/08/17/snap-circuits-electronics-kits/">http://www.vk3bq.com/2013/08/17/snap-circuits-electronics-kits/</a> or <a href="http://mashable.com/2013/05/21/lightup-magnetic-building-blocks/#t5Kq_yIDpaqr">http://mashable.com/2013/05/21/lightup-magnetic-building-blocks/#t5Kq_yIDpaqr</a></p>
