# Extended Block Addition Method
To enrich the programming experience with ICRobot, users can add extension blocks. These blocks function like modular add-ons in block-based programming. By dragging and combining them, users can create more advanced and diverse functionalities. For example:

+ **<font style="color:rgb(23, 26, 29);">Face Recognition Block:</font>**<font style="color:rgb(23, 26, 29);"> Detects and recognizes human faces in images. Suitable for interactive scenarios.</font>
+ **<font style="color:rgb(23, 26, 29);">Color Recognition Block: </font>**<font style="color:rgb(23, 26, 29);">Identifies the color of an object. Useful for sorting, tracking, and classification tasks.</font>

These extensions make ICRobot's coding more intuitive and powerful — ideal for users of different ages and skill levels.

_**Note: Extensions can only be used in Interactive Mode.**_

| ![](img/E1.png) | ![](img/E2.png) |
| --- | --- |
| Step 1: Open the software and make sure you are in ICRobot Mode. | Step 2: Click the “![](img/E3.png)” button at the lower-left corner of the screen. |
| ![](img/E4.png) | ![](img/E5.png) |
| Step 3: In the extension window, select the block you wish to add. | Step 4: Once added successfully, the new blocks will appear in the Block Instruction Area. |