why is my filter not working??

[cc.caroline15]

Hello everyone,
I'm trying to construct a form with a option group that when Selecting the Fotheringham radio button will filter to all records where the instructor field contains the “Fotheringham”. Selecting the All Classes radio button will remove the filter. I'm not sure why it's not working I have attach my work can anyone please revise it?? Thank you

 

[essaytee]

What is not working? Is anything happening? If so, what?

 

[smig]

can you show the relevant piece of code ?

 

[Eljefegeneo]

Check your spelling. You misspelled the field.