For the past two months, I have been slowly updating my GeoGebra tutorials for GeoGebra 5.0. Several of the new updates include the series on **GeoGebra Essentials**. The updates of other tutorial series will follow in the next few weeks.

Due the busy schedule and the installation of security features due to recent hacks, I have not posted for almost two weeks. However, this blog has more than **1000 posts**, so you have more than enough to read. You might also want to take a look at Math and Multimedia’s **50 most popular posts**. You can also to explore the different categories at the top of the page.

Below are some recent posts of Math and Multimedia:

- The Basics of Inverse Proportion
- The Basics of Direct Proportion
- Derivation of the Area of a Rhombus
- Proof Without Words: If x >0, x + 1/x >=2
- How to Guess the Day of the Week Your Friend Was Born

Enjoy reading!