# Programming a Move Procedure

Now we want to turn your algorithm into a reusable procedure - there are 5 columns on this grid and one measure of our success is for the program to work for ANY size grid

Find the Functions Block -

![ We use the term procedure, functions or methods interchangeably at this level of CS.](https://2507214486-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LpUPSf3tCxHePJxNjfg%2F-Lv2gAjGoMdNnE_675m_%2F-Lv2geX3hmnWQtGoYOYP%2Fimage.png?alt=media\&token=526de725-0d7a-4637-ad1e-dc3e66189b60)

Click create a function and then title it moveDown - do not be distracted by the other options on the screen. And then hit done

![](https://2507214486-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LpUPSf3tCxHePJxNjfg%2F-Lv2gmI1WXxgJCySXVPA%2F-Lv2h32bNlVxGqEl1v3L%2Fimage.png?alt=media\&token=35ed4b1b-9927-4b7e-9433-87c4777077b9)

```
Inside the moveDown Function
//this is my fully realized moveDown function
    Repeat 4
        move boat 1
        pause 1000ms
    boat turn left 90
    boat move by 1
    pause 1000 ms
    boat turn left by 90
    
```

Now to test it by calling the function. When you return to the Functions tab you should see 1 block - the call moveDown

**TIP:**When we use a function we are calling it

```
On Start
    boat to 0,0
    turn boat left 90

A Button Pushed
    call moveDown
```

Test this code several times and make sure it is traversing each LED down the column. Do you need to adjust turns?