Guided Tool Tips for Expression Calculation

A student device for use in a classroom, the device comprising:

• a display screen and storage memory coupled to a processor operable to execute software instructions stored in the memory;
• an input mechanism for data input and for selection of items on the display screen coupled to the processor;
• and
• wherein by executing the software instructions, the processor is operable to perform a method comprising:
• displaying one or more data elements on the display screen of the student device;
• displaying an expression on the display screen of the student device;
• determining variables in the expression by parsing the expression;
• presenting a prompt by the student device to associate a first one of the variables with one of the data elements;
• and
• selecting a data element in response to user input with the input mechanism and associating the selected data element with the first variable.

A non-transitory computer-readable medium storing software instructions that, when executed by a processor, perform a method for operating a student device, the method comprising:

• displaying one or more data elements on a display screen of the student device;
• displaying an expression on the display screen of the student device;
• determining variables in the expression by parsing the expression;
• presenting a prompt by the student device to associate a first one of the variables with one of the data elements;
• and
• selecting a data element in response to user input to the student device and associating the selected data element with the first variable.