`Getting the Goods on GraphingVelma Elois Rouse              DeWitt Clinton                               6110 N. Fairfield Av.                               Chicago IL 60659                               312-534-2025Objectives:To graph ordered pairs in the coordinate planeTo identify ordered pairs in the coordinate planeTo write the coordinates of points shown on a planeTo create designs or pictures using ordered pairsMaterials needed:Graph paper (3 or more sheets per student)Rulers (1 per student)Pencils (1 per student)Overhead projectorOverhead projector transparenciesMaps (2 per student)Strategy:Give each student a map that has the index and grid markings removed.  Instruct the students to locate certain points.  After a brief span of time, distribute the maps with indexes and all markings in place.  Again, instruct the students to locate certain points.  Lead the students to discover the usefulness of grids. Distribute graph paper.  Have the students construct a coordinate plane.  Demonstrate on the overhead projector.  Label the axes, stressing that the horizontal axis is x and the vertical axis is y.  Explain the point of origin and the negative and positive x and y locations.  Allow sufficient time for students to practice locating points and naming coordinates. Have the students locate ordered pairs on their graph paper and connect the points in order.  Plan for the connected points to form a geometric figure.Prepare in advance a different set of ordered pairs for each student.  Plan for the resulting figures to coincide with a current event, holiday, or school program.  Display the finished graphs in a prominent place.Performance Assessment:Each student will create his or her own picture or design on graph paper and write the ordered pairs.  The ordered pairs will then be given to other students.  The student who created the design will be expected to correctly write ordered pairs that will duplicate the design.  The student who graphs the ordered pairs will be expected to correctly duplicate the design.  Both of these performances should be completed with 95% accuracy. Conclusion:The students will realize that the skills they have acquired will be useful in many areas besides mathematics.  Other disciplines that utilize graphs are science, geography, economics,  and computers.  With the use of and interest in computers continuing to grow, students will be made aware of a career choice in computer-aided design (C.A.D.). Multicultural Statement:Africans invented rectangular coordinates by 2650 B.C. and used them to make scale drawings and star-clocks in ancient Egypt.`