Hi,  I am Priya. I am entirely new to Pharo. I have to submit a project in one week to get placed (tough task for those who dont have any knowledge about smalltalk or the Pharo environment).  I am doing a very small project for getting two numbers from the user and performing basic calculations on them. There is a drop-down menu with options - add, subract, multiply, divide.  I have a problem with this step. content := (builder newLabelGroup: {                'First number' -> (                       n1 := (builder                         newTextEntryFor:self                         getText: #num1                         setText: #num1:                            help: 'Enter the first number')                         acceptOnCR: false;                         minWidth: 200). ....... Here, num1 is an instance variable with accessors (returns 0 as default). num1 is not getting upated when I enter in the text field. I am not getting any error also. Transcript window is showing the value of num1 as 0. Can anyone help me with this, please?  (Event handling and all is working properly sending a message to the add method. Only the instance variables are not getting updated.)