MATERIALS NEEDED:

• DIGITAL CAMERA AND FLOPPY DISK
• PROJECTOR OR SMART BOARD
• LARGE TILED FLOOR SPACE (FOR EXAMPLE A TILED GYM OR CLASSROOM FLOOR)
• A SET OF NUMBERED CARDS (ONE FOR EACH STUDENT IN THE CLASS)
• A SET OF PAGES LABELED WITH THE DIFFERENT HAIR COLORS WORN BY THE STUDENTS IN THE CLASS
• A STEP LADDER OR OTHER ELEVATED AREA FROM WHICH TO TAKE A PICTURE OF THE STUDENTS

PROCEDURE: (CONTINUED)

4. "HOW MANY STUDENTS HAVE BROWN HAIR? HOW MANY MORE HAVE BLACK THAN RED? WHAT DO YOU HAVE TO DO IN ORDER TO FIND THE ANSWERS TO THESE QUESTIONS?"

• THE CLASS DISCUSSES THE TIME TAKEN TO COUNT EACH STUDENT AND BRAINSTORM WAYS TO ACHIEVE THE SAME ANSWERS IN A FASTER, CLEARER WAY. ADD A NUMBER CARD TO EACH TILE ALONG THE LEFT SIDE OF THE STUDENTS LINES. STUDENTS MUST STAND ONE PERSON TO A TILE. THE "UNITS" OF A GRAPH MUST BE EQUAL.
• THE TEACHER TAKES A THIRD PICTURE AND SHARES IT WITH THE STUDENTS.

5. "HOW DOES THIS PICTURE SHOW THAT WE ARE LOOKING AT HAIR COLOR? WHAT NEEDS TO BE ADDED TO THIS GRAPH TO MAKE OUR DATA CLEARER AND EASIER TO UNDERSTAND?

• LABELS FOR EACH HAIR COLOR AND A TITLE ARE ADDED TO THE GRAPH.
• A FINAL DIGITAL PICTURE IS TAKEN AND DISPLAYED.

PROCEDURE:

1. STUDENTS GATHER TOGETHER AT THE LARGE TILED FLOOR SPACE. ASK THE STUDENTS, "WHICH HAIR COLOR DO YOU ESTIMATE TO BE THE MOST COMMON IN OUR CLASS? HOW DID YOU MAKE YOUR ESTIMATE?"
2. "HOW WILL WE SORT OURSELVES IN ORDER TO FIND THE ANSWER TO OUR QUESTION?"
   • STUDENTS FORM GROUPS BASED ON HAIR COLOR. THE TEACHER TAKES A DIGITAL PICTURE OF THE GROUPINGS FROM A HIGHER ELEVATION. THIS PICTURE IN THEN DISPLAYED TO STUDENTS ON THE PROJECTOR.
3. "WHAT IS THE ANSWER TO OUR QUESTION? HOW DID YOU FIND IT? HOW CAN WE ORGANIZE OURSELVES IN A DIFFERENT WAY THAT WILL MAKE FINDING THE MOST COMMON HAIR COLOR EASIER AND FASTER?"
   • STUDENTS RE-ORGANIZE THEMSELVES INTO LINES OF STUDENTS WITH THE SAME COLOR. THEIR LINES ARE TO BE PERPENDICULAR TO A TAPED LINE ON THE FLOOR OR THE "AXIS".
   • A SECOND DIGITAL PICTURE IS TAKEN AND DISPLAYED.

CLOSING:

• THE CLASS DISCUSSES THE FOLLOWING QUESTIONS...
  • WHAT STEPS ARE TAKEN IN THE MAKING OF A CLEAR GRAPH?
  • HOW MANY PEOPLE ARE IN OUR GRAPH? HOW DID YOU FIND YOUR ANSWER?
  • HOW MANY PEOPLE HAVE BLOND OR BROWN HAIR? HOW DID YOU FIND YOUR ANSWER?
  • HOW WOULD THIS GRAPH CHANGE IF WE USED A DIFFERENT CLASS OF STUDENTS? IF WE USED TWO CLASSROOMS OF STUDENTS?

CELS: NUMERACY, CCT

OBJECTIVES:

• D-4 DESIGN CLASSIFICATIONS AND SORT DATA USING A) OBJECTS
• D-5 DESIGN CLASSIFICATIONS FOR DATA COLLECTED
• D-6 DISPLAY DATA USING A) OBJECT GRAPHS
• D-8 DISCUSS, INTERPRET, AND ASCRIBE MEANING TO THE ORGANIZED DATA BY A) EXAMINING THE SHAPE