Powerful PowerPoint for Educators: Using Visual Basic for Applications to Make PowerPoint Interactive


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2.2. Powerful PowerPoint For Educators

RandomQuestion
procedure, ex 
cept that it calls
RightAnswer
and
WrongAnswer
in stead of 
DoingWell
and 
DoingPoorly
):
Sub RandomQuestion()
Dim first As In 
teger
Dim sec 
ond As In 
teger
first = Int(10 * Rnd)
sec 
ond = Int(10 * Rnd)
an 
swer = InputBox("What is " & first & " + " & sec 
ond & "?")
If an 
swer = first + sec 
ond Then
RightAnswer
Else
WrongAnswer
End If
End Sub
Add
Ran 
dom 
ize
to the 
Ini 
tial 
ize
pro ce dure. 
Remove
ActivePresentation.SlideShowWindow.View.Next
from 
RightAnswer
and
WrongAnswer
so it does not automatically ad vance to the next slide.
For this to work properly, you need three slides: a ti tle slide, a question
slide, and a feedback slide. The title slide has a button tied to 
GetStarted
. The
question slide has a button tied to 
RandomQuestion
and a button that goes to
the next card. And the feedback slide has a button tied to 
Feed 
back
.
If you are ad venturous, you might try to eliminate the feedback slide and
keep a run ning to tal in a text box on the slide. Af ter each question, up date the
text in the text box. You already have the num ber of correct and in correct an -
swers stored in 
numCorrect
and 
numIncorrect
. You simply need to use this
to up date a text box af ter each question is answered.
Ran dom Num bers 145



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