reCaptcha

I have been getting a lot of comment spam on my blog.  I don’t want to restrict posting only to those that have gone through the (sometimes tedious) process of setting up an account on my server.  There is a place for that, but not on my blog.

I found a free plugin for WordPress called reCaptcha.  You have probably used a captcha before.  It’s one of the fuzzy-looking letter combinations that you have to type to prove you are a human and not an automated spam-bot. Below is an example from my new comment plugin.

recaptcha.png

After typing your comment, enter the letters you see and your comment will go through.

This should eliminate all the comment spam without creating a headache to the humans that create normal posts.

Posted in edtech | Tagged | 3 Comments

BeFunky

Here is a fun site.

http://www.befunky.com

Upload a picture to the site and the web-based application turns the photo into a cartoon.

becomes

There are options that control how “cartoony” the picture becomes, how much color saturation is carried over from the photo and even add some funky effects to your cartoon.

The site is free.  Your work can be shared with other social networks or marked as private.

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Cost of Dinner

I talked about the five minute rule last year, but here is one that deals with the cost of technology.

If there is a technology you need (USB flash drive, head phones, software upgrade) that costs about as much as dinner at a restaurant, buy it.  That’s my rule.  I can have a nice meal at my favorite sushi bar for $20.  I can skip the sushi next time if I really need to purchase some technology now.

At UF, our students can buy Office 2007 or 2008 for $10.  For that price, it makes no sense using anything else.  Vista Ultimate is also $10, but some may argue it’s not usable even if it’s free.  I’ll save that discussion for another day.

A great dinner eventually comes to an end and then it is over.  A two gigabyte flash drive can last for years.

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TWEP

Rappold has posted the first episode of The Web Edtech Podcast.  The topic is Learning Management Systems.  You should recognize a couple of the people participating.

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Crayon Physics

Years ago I remember a computer game which involved creating a Rube Goldberg sort of contraption to complete an assigned task.  I can’t remember the name of this game.  It was something like The Machine… it’s been a long time.

Today I ran across a freebie called Crayon Physics.  It works along the same lines as the machine game I remember, but this time you have to draw all the objects from scratch with a crayon.  On top of that, all objects are affected by gravity, so everything falls if there is nothing to hold it up.

The game gives you a ball and you must touch the ball to a star (or multiple stars in some cases).  Below is a screen shot of one level.  By the time I snapped the picture, the ball had already rolled off the top incline and was well on its way to the bottom of the page.  If the star is still on the screen, the game starts all over again with the ball in the original location.

Below is the screen after adding some rectangles and lines.

I have already “touched” the first star and the ball is headed down the incline to the second one.

The layout of the game reminds me of a brown paper bag.  There was a time when a paper bag and a hand full of crayons could keep a kid busy for hours.  This game brings back that magic with simple objects that must be “created” in order to solve the problem.

The free version has seven levels.  The pictures above are from the final level.  What’s the most creative method that can be used to solve each level?  This would be a fun activity for students.  It could be worked into a unit about gravity, geometry or vector algebra.

The author of the program is working on a “deluxe” version.  Check out the YouTube video below.

http://www.youtube.com/watch?v=QsTqspnvAaI

I especially like the “golf club” solution.

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