TOPIC: Identify, compare, classify and calculate area for geometric figures, such as: Rectangle, Square, Circle and Triangle.

GRADE: 5-6.

MATERIALS: Pen, Paper, Pencil, Meter tape, Calculator, Barry University Basketball Court, Worksheets (prepared by the teacher).

OBJECTIVE: The students after a demonstration on geometric figures will be able to compare, classify and compute the correct area for each figure, and will develop an appreciation of geometry as a way of describing the physical

World.

MATHEMATICAL

CONCEPTS : Areas, percentages, data collection, construction of tables.

NTCM STANDARDS: Standard 12: Geometry.

-Identify, describe, compare and classify geometric figures.

-Develop appreciation of geometry as a means of describing the physical world.

Standard 13: Measurement.

-Extend their understanding of the concepts of perimeter and area.

-Extend their understanding of the process of measurement.

-Estimate, make and use measurements to describe and compare phenomena.

PROCEDURE:

Instructional strategies:

SET: (teacher's introduction to get student's attention) The teacher will introduce the concept of geometric figures by mentioning that in a real world we are surrounded with different geometric figures, i.e., : Basketball, then, the teacher will rhetorically ask:

"DO YOU KNOW HOW MANY GEOMETRIC FIGURES CAN WE FIND IN THE BASKETBALL COURT?" and "CAN WE FIND THE AREA FOR EACH OF THEM?".

BODY: (teacher's procedure to get to the objective) The teacher will hand out a chart with four different geometric figures: RECTANGLE, SQUARE, CIRCLE and TRIANGLE and its respective areas, as follows:

WORKSHEET TO CALCULATE AREAS FOR GEOMETRIC FIGURES

GEOMETRIC FIGURE    NAME                 NECESSARY           FORMULA TO           
                                         DIMENSIONS TO       CALCULATE AREA       
                                         CALCULATE AREA                           

                    RECTANGLE            LENGTH (B) & WIDTH  B X H                
                                         (H)                                      

                    SQUARE               SIDE (S)            S X S                

                    TRIANGLE             LENGTH OF BASE(B)   B X H                
                                         & ALTITUDE (H)           2               

                    CIRCLE               RADIUS              3.1416 X R X R       
                                                             where Pi = 3.1416    

-The Teacher will go over the above referenced chart and explain how to calculate the different areas for each figure given the necessary dimensions.

-Teacher had previously assigned the students to form groups of 4 to 5 and go after the Basketball game to Barry University auditorium and take a worksheet with them (prepared by teacher) to find out the following: GEOMETRIC SHAPES THEY CAN FIND IN THE URT, AREA OF EACH, AREA OF THE COURT AND AREA OF THE 3 POINT ZONE.

Geometric       Measurement of  Area of each    Area of the     Area of the 3   
figures you     the necessary   figure          Court           point zone      
can find        dimension to                                                    
                calculate area                                                  

                                                                                

                                                                                

                                                                                

                                                                                

                                                                                

                                                                                

In order to obtain the dimensions, the student will have to measure using a meter tape each required items on the basketball court, or will research in the library, or will use Netscape or use Encarta encyclopedia.

-With the information obtained and the areas calculated by the student the teacher will ask to one group to explain their findings and how they calculated the respective areas for each figure. The teacher will repeat the same procedure with two more groups, in this way the student will be informed of different ways in which they can obtain information to solve a problem.

VISUAL: real examples, Charts, visuals.

KINESTHETIC: group activity.

CLOSURE: At the end the teacher will ask another group to explain how they calculated the court and the 3-point zone area and will review the procedure with them, delivering a visual sample of a basketball court with standard measurements(find an attached sample obtained from ENCARTA Encyclopedia) for the student to check if the dimensions obtained in the assignment were close to those gave by the visual sample and to verify if the areas were calculated correctly.

ASSESSMENT: The teacher will ask to a student to go to a baseball game and find out different geometric figures, area for each figure, and area of the baseball court.

REFERENCE: Barry University Basketball Auditorium, Encarta Encyclopedia, Netscape.

CONTRIBUTORS: Major: Maritza Simauchi.

Minor: Carol A. Marinas.

GEOMETRIC FIGURES YOU CAN  AREA OF EACH FIGURE        AREA OF THE COURT          
FIND