## Blog carnivals and other updates

**The Blog Carnivals**

The** Mathematics and Multimedia Blog Carnival** is now accepting entries for its 22nd edition. You may submit your entries to carnival@mathfour.com or the carnival submission form on or before April 14, 2012. The carnival will be hosted by Math is Not a Four Letter Word and will be posted next week.

The 49th edition of Math Teachers at Play is now online at Teach Beside Me.

The 85th edition of the Carnival of Mathematics is also online at Traveled in the Mathematical World.

If you are interested to host the Math and Multimedia Carnival, you may contact me at mathandmultimedia@gmail.com.

** Updated GeoGebra Tutorials (to version 4.0)**

- GeoGebra Tutorial 16 – Slider, Sequence, and Segment Division
- GeoGebra Tutorial 17 – Tangent and the Meaning of Derivative

**Recent Articles**