Transcript Remote Instruction: Teaching with Visual Basic

Remote Instruction:
Teaching with Visual Basic
EDU 556 Programming for Instruction
Dr. Steve Broskoske
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Teaching Techniques with VB
• Displaying Web pages in 2 ways.
– Extra: Open a Word or PowerPoint document.
• Display hidden text / pictures.
• Create embedded questions with feedback.
• Create a test.
2 Ways to Display a Web Page
1. Use a button with a Web Browser control:
– WebBrowser1.Navigate(“URL” OR variable)
2. Use a link label control:
– System.Diagnostics.Process.Start(“URL” OR
variable)
1) Web Browser Control
On a form, draw a
Web Browser control,
and create a button.
This functions like a
“lock-down” browser.
View Website
WebBrowser1.Navigate("http://www.url.com")
Dim WebAddress As string
WebAddress = “http://www.url.com”
WebBrowser1.Navigate(WebAddress)
2) Link Label Control
Navigate to a Web page in
Internet Explorer.
On a form, create a link
label. Double-click the
link label to add code to
it. The link will open in
Internet Explorer (or
whatever the default
browser is on that
particular PC).
System.Diagnostics.Process.Start("http://www.url.com")
Dim WebAddress As string
WebAddress = “http://www.url.com”
System.Diagnostics.Process.Start(string_variable)
Opening Other Files
System.Diagnostics.Process.Start(“C:\MyDocument.docx")
You could use this same pattern of coding
to open up a Word, PowerPoint, or any
other file on the PC.
Displaying Hidden Text
lblDisplay
Display
Text
lblDisplay.Visible = True
Display
Picture
PictureBox1.Visible = True
Creating Embedded Questions
• Good idea to embed questions: promotes
interactivity (active interaction vs. passive
reading).
• Questions not graded.
• Provide feedback to user.
• Questions are an instructional technique.
Creating Embedded Questions
Use the If
statement to see if
the checked
property for the
correct answer is
true.
Embedded question.
RadioButton1
RadioButton2
Radiobutton3
Feedback.
Instead of tallying
the number of
correct answers,
provide feedback to
the user. These
questions can be
used as drill and
practice of the
material.
If RadioButton1.Checked = True Then
lblFeedback.text = “Good…”
Else
lblFeedback.text = “Not correct because…”
End If
Creating Test Questions
Use the If
statement to see if
the checked
property for the
correct answer is
true.
Test question.
RadioButton1
RadioButton2
Radiobutton3
If RadioButton1.Checked = True Then
totalCorrect = totalCorrect + 1
form10.show
Me.close
End If
At the end of the
lesson, ask several
test questions. Do
not give feedback.
Instead, just tally
the correct answers
to determine a
score.
Review Document
Review of
Visual Basic 2010 Express Elements
Finishing Touches
• Set the text property so that your program name
appears rather than “form 1.”
• Set the startPosition property to “center screen” on
each form to make each form display uniform.
• To prevent the user from maximizing your form, set the
maximizebox property to false.
• To prevent the user from resizing your form to a larger
size, check the current height and width of the form in
the size property. Plug these numbers into the
maximumSize property.
• If you want your program to open in full screen mode,
set the windowState property to maximize.
Project Planning
• Plan to create a program that will teach
something to your students.
• Plan to use the following teaching techniques:
– Embedded questions with feedback.
– Test questions that tally student score.
– Teach using text, pictures, Web browsing.
– Incorporate interactivity.
Project Planning
• Plan to use the following VB elements:
– Variables.
– A global variable (to tally student score).
– If…then statements.
– Gather student input using text boxes, radio
buttons, and/or check boxes.
– Output information using labels.
Project Planning
• Apply finishing touches:
– Ensure that the program runs effectively and
consistently throughout.
This week’s in-person class will be a
brainstorming, planning, and lab session.
Choose the material you would like to teach,
plan some embedded and test questions, and
gather some resources for teaching. A project
rubric and examples will be shared.