Section 2.2 Geogebra Activity<br />This activity will be completed in groups of 2-3. Please follow all directions and collaborate with your group members to complete all questions. <br />One group member should record all answers and information on the ANSWER SHEET, and a different group member should manipulate the program on the netbook. The third group member is responsible for keeping track of the time (you will be given a time limit) and reading these instructions out loud. If you do not have a third group member, delegate the task of reading aloud as you see fit.<br />DECIDE WHO WILL PERFORM EACH TASK AND RECORD THIS ON THE ANSWER SHEET.<br />
Go to http://www.geogebra.org/webstart/geogebra.html This might take a couple of minutes to load. GeoGebra is a free and multi-platform dynamic mathematics software for all levels of education that joins geometry, algebra, tables, graphing, statistics and calculus in one easy-to-use package. It has received several educational software awards in Europe and the USA.
Click on “View” in the Geogebra toolbar (not the web browser’s toolbar). Select “Axes” in order to remove the x- and y- axes from the viewer.
Select the line tool.
You will create 2 lines. Simply click once to begin to place the line, and then click the second time to determine the direction of the line. Make sure to leave some distance between the two points you click. The intersection of these lines should be between the points that name the line.
Click the small downward arrow on the construction button. When the menu drops down, select “Intersect Two Objects.” You will then click on each line (anywhere on the line EXCEPT the points). This should create a point F at the intersection.
We are almost there! Measure 2 adjacent angles. Select the angle tool. You will click on 3 points to define the angle. THE ORDER IN WHICH YOU SELECT THE POINTS IS VERY IMPORTANT. You must select the points in a clockwise direction with the vertex being the second point you select.
Lastly, select the arrow tool. Click on a point that is not the intersection, and manipulate the angles. Record some of your angle measures on the ANSWER SHEET.
When you are finished, please raise your hand and tell Miss Q. Thank you!
ANSWER SHEET<br />Please list your group members and their jobs here:<br />Once you manipulate the angles, record some of the measures you saw. Record the measures in pairs. For example, if I see an angle of 66.14 degrees, I would see an angle of 114.86 degrees at the same time. Record BOTH of these measures as a pair.<br />184.108.40.206.220.127.116.11.<br />Talk it over with your group, and make some observations about the pairs of angle measures. Look at their numerical relationship as well as how the numbers relate to the picture.<br />Exit Slip:<br />Did you enjoy the netbook activity? Why or why not?<br />Do you feel that it will help you to remember complementary and supplementary lines?<br />Were the instructions clear?<br />Do you enjoy working in groups?<br />Do you feel that your group members contributed fairly?<br />Exit Slip:<br />Did you enjoy the netbook activity? Why or why not?<br />Do you feel that it will help you to remember complementary and supplementary lines?<br />Were the instructions clear?<br />Do you enjoy working in groups?<br />Do you feel that your group members contributed fairly?<br />