by Teresa Cox
INTRODUCTION TO GEOMETER’S
SKETCHPAD
This lesson plan is an introduction to Geometer’s
Sketchpad software. Great for middle
school students, it can also be used for high school students who have just
stared a Geometry class. The activities
given in this lesson allow the students to use the most common tools of the
software so they can do future labs. This lab was developed by Mike Riedy and reproduced from
Additional Learning Outcomes:
They
will be exposed to the principle that a triangle’s interior angles add up to
180^{o}.
Assessed QCC:
1 


6 


8 


[33] 

NonAssessed QCC:
14


Total Duration:
Geometer’s
Sketchpad should be on each student computer and a printer should be available.
Procedures:
If
possible, the teacher can demonstrate GSP in the classroom first before moving
to the computer lab. The teacher should describe the GSP icon and how to find
it on the computer (using the “Start” button on the desktop menu) if the icon
is not on the desktop. The teacher can point out the similarity of GSP’s menu
with other computer programs such as Word, PowerPoint, or Publisher that the students
might have used in other classes. This eases some student’s fear of learning
new “stuff”.
Estimated Time: 1015 minutes
Then
move the students to the computer lab (if not already there) and hand out the
Introductory Lab and an answer sheet to each student as they sign on to a
computer.
Estimated Time: 1015 minutes (shorter if already in the
computer lab)
Step Three
Have
the students start on the introductory lab, answering the questions as they go
on the answer sheet. If the students use
the answer sheet, it allows the teacher to use the lab repeatedly with other
classes without making additional copies.
Estimated Time: 2 – 2.5 hours
Lesson Materials Attached:
Title:
GSPActivity1 – This is the 8page instruction
sheet for the student.
Title: GSPAcitivty1AnswerSheet
– Filled out by the students
Web Links:
If you like this activity, search The Math Forum @ Drexel (http://mathforum.org/) for more activities,
several by Mike Riedy. The Math Forum is an excellent web site for mathematical
howtos, history and questions by students as well as resources for math
teachers.
A
second excellent source would be the Intermath web site at www.intermathuga.gatech.edu/ .
Again, many activities are available for students to pursue.
Assessment:
The
answer sheet can be graded as an activity or daily grade. No answer key is attached, as the teacher
should do the lesson themselves to ensure familiarity with the software and the
outcomes the student should get.
Extension:
Once
students are familiar with the software, many geometry activities are available
in geometry books and on the internet (see links above) for students to
explore.
Remediation/Accommodation/Modification:
For those
students that are not computersavvy, have special needs or IEPs, the
introductory lab could be divided into several pieces (for example, one tool
button at a time) and each could be teacherled.