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H01Tx : FF2222 2c FF*M FF*ACTIVITY CENTER GOLF COURSE - TEACHER NOTES
Send corrections, questions or comments to: jlarson1@phxhs.k12.az.us
OBJECTIVE: Students will write the equation of a line that passes through two points. The information about the points is given in both coordinate form and on a graph.
DESCRIPTION: Each activity setting contains a background photograph of a hole of golf. There is a white ball and a hole with a flag. Students are to submit the equation of the line in slope-intercept form that will go through both the ball and the hole. The equations all have integer y-intercepts, but several have slopes that are not integers.
The activities are set up with the following selections checked (which can be altered as needed by the teacher):
Send Current graph contents as background (so the two points are visible on the student calculators.
Let students view graphs of equations (so they can plot their equations on their calculators before sending them to the activity center).
Let students resubmit equations.
When changing from one hole to the next, be sure to clear the activity data BEFORE you load the next activity setting. If you do not, you will need to erase the new ball and hole location points along with the old equations. The setting would have to be re-loaded to get those points back for viewing on screen or on the student calculators.
SCORING: Students can work in teams or individually. The activity center records answers in the order they are received. Points could be awarded according to the order in which correct answers were received. Or, a random student could be picked, and the teacher could privately check, and then award points if the equation submitted by that student is correct.
OPTIONS:
Display
The display tabs in activity center permit many variations.
Choose the graph tab if you want to emphasize using graphical/visual information in writing an equation. Check or uncheck the grid to emphasize estimation over calculation.
Choose the list tab if you want to emphasize using the slope formula and finding the equation algebraically. Only the two ordered pairs will be displayed; the background image and the lines that have been submitted could be displayed after the activity has been stopped or paused by changing the display tab.
Choose the list-graph tab if you want to give students a choice of which type of information to use.
Increase the challenge
As students get better, you can change the default setting before starting each activity:
Uncheck the Let students resubmit equations. In this case, students definitely need to plot their equations on their own calculators first (or do their calculations carefully), because they will only get one chance to submit an equation to the activity center.
Uncheck the Let students view graphs of equations and also use the list display to force students to write the equation algebraically.
Uncheck the grid so students cannot count squares as easily and must estimate slopes and intercepts.
THE ACTIVITY SETTINGS:
The correct equations and the coordinate information for each activity setting are as follows:
Golf 1: (-8,0) and (2,5) EMBED Equation.3
Golf 2: (5, -5) and (2, 4) EMBED Equation.3
Golf 3: (-4, -5) and (4,-3) EMBED Equation.3
Golf 4: (-9, 3) and (3, -1) EMBED Equation.3
Golf 5: (1, 5) and (9, -3) EMBED Equation.3
Golf 6: (7, 3) and (-7, 5) EMBED Equation.3
Golf 7: ( -1, 6) and (-3, -2) EMBED Equation.3
Golf 8: ( -7, -8) and (3, 2) EMBED Equation.3
Golf 9: (-10, 9) and ( -2, -3) EMBED Equation.3
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