Hello Obe Wan,

To create a button that will add 1 to a cell every time you click it, you can follow these steps:

1. Go to the Developer tab in the Excel ribbon. If you don't see the Developer tab, you can enable it by going to File Options Customize Ribbon and checking the box next to Developer.
2. Click on the Insert button in the Controls group and select the Button control.
3. Draw the button on the worksheet where you want it to appear.
4. Right-click on the button and select "Assign Macro".
5. In the Assign Macro dialog box, click on the "New" button to create a new macro.
6. In the Visual Basic Editor, enter the following code:
   
   
   Formula:

   Sub AddOne()
    ActiveCell.Value = ActiveCell.Value + 1
End Sub 

   This code will add 1 to the active cell whenever the button is clicked.
   
7. Close the Visual Basic Editor and click "OK" in the Assign Macro dialog box.
8. Test the button by clicking on it and verifying that the cell value increases by 1.

To create buttons for adding 5 and 10, you can follow the same steps but modify the code in step 6 to add 5 or 10 instead of 1. For example:

To repeat these buttons for 50 students, you can copy and paste the buttons to each student's worksheet. You can also use the "Format Painter" tool to copy the formatting of the buttons to other cells.