HOW LARGE IS A MOLE OF M&M'S

LOUISIANA CURRICULUM FRAMEWORK CONTENT STRAND: CHEMISTRY
GRADE LEVEL: 11

OBJECTIVES:
    THE STUDENTS WILL     1. DETERMINE THE VOLUME OF A MOLE OF M&M'S.
                                                    2. USE DIMENSIONAL ANALYSIS TO CONVERT LITERS TO CUBIC FEET
                                                    3. DETERMINE THE VOLUME OF THEIR HIGH SCHOOL BUILDINGS
                                                    4. DETERMINE IF A MOLE OF M&M'S WILL FILL THEIR HIGH SCHOOL
 

TEACHER INFORMATION:
   TIME FRAME:                                                2-3 DAYS
 
    MATERIALS:                                                 LITER BEAKER (CLEAN)
                                                                               2-3 EXTRA LARGE BAGS OF M&M'S OR
                                                                                 HAVE STUDENTS BRING IN 1 SMALL BAG EACH
                                                                               TOWEL
                                                                               TAPE MEASURES
                                                                               SCIENTIFIC CALCULATOR (OPTIONAL)
 
    STUDENT GROUPING:                                3 PER GROUP
 
    CURRICULUM INTEGRATION:                 DIMENSIONAL ANALYSIS
                                                                               CALCULATION OF VOLUME
                                                                               TABLES

    BENCHMARKS:                                 PS-E-A2, PS-H-A1, PS-H-A2, SI-H-A3, M.1, M.3, AND M.4
 
POSSIBLE OBSTACLES TO STUDENT LEARNING
    LACK OF MATH SKILLS: SCIENTIFIC NOTATION AND METRIC CONVERSIONS

OPPORTUNITIES FOR ASSESSMENT
    PERFORMANCE OF PROCEDURE  (PARTICIPATION)
     LAB REPORT WITH TABLES AND CALCULATIONS
     STUDENT PREDICTION AND CONCLUSION
 
BACKGROUND INFORMATION:
    SHOW EXAMPLES OF DIMENSIONAL ANALYSIS (FACTOR LABEL METHOD)
                        PROBLEM SOLVING AND GIVE THEM EXAMPLES AS PRACTICE.
                      ex. 101,376 in converted to miles
                            101,376 in  *      1 foot      *     1 mile      =        1.6 miles
                                                    12 inches        5280 feet

                      ex. 78 m/s to mi./h
                            78.00 meters   *    60 seconds   *    60 minutes    *    100 cm.  *     1 in.   *
                               second             1 minute                1 hour               1 m.        2.54 cm

                               1 ft.      *      1 mile     =     174.5 mi/h
                             12 in.             5280 ft
 
     HAVE STUDENTS CALCULATE THE VOLUME OF SMALL OBJECTS WITH RECTANGULAR
        AND CUBIC SHAPES.
 
    HAVE STUDENTS WORK METRIC CONVERSIONS WITH CUBIC DIMENSIONS.

PROCEDURE:
    DAY 1   POUR M&M'S INTO A CLEAN LITER BEAKER.
                    POUR THEM OUT ONTO A CLEAN TOWEL AND HAVE STUDENTS COUNT THEM.
                    THE STUDENTS MAY EAT THEM AFTER AN ACCURATE COUNT IS TAKEN.
                    THE STUDENTS SHOULD CALCULATE THE NUMBER OF M&M'S PER CUBIC FOOT.

                    x m&m's  *     1 liter      *     1mL      *    (2.54cm)*   (12 in.)   =    x m&m's
                      1 liter          1000mL.         1 cm3                   1 in3                1 ft3                       ft3
 
                THE STUDENTS SHOULD CALCULATE THE NUMBER OF CUBIC FEET OF M&M'S PER
                        MOLE.
                   6.02 x 1023 m&m'S    *       1 ft3                =        6.02 x 1023  ft3
                            mole                        x M&M'S                    mole

    DAY 2    EACH GROUP SHOULD HAVE A MEASURING TAPE, PAPER, AND PEN TO RECORD
                       THE DIMENSIONS OF THE BUILDINGS OF YOUR CAMPUS.  THE STUDENTS SHOULD
                       BE ASSIGNED TO MEASURE PARTICULAR SITES AND GIVEN A TIME LIMIT TO
                       COMPLETE THE TASK.
                     THE STUDENTS SHOULD CALCULATE THE VOLUME OF EACH BUILDING AND
                       COLLECT THE DATA FROM THE OTHER GROUPS.
                     THE STUDENTS SHOULD USE THE CALCULATIONS FROM THE PREVIOUS DAY TO
                  SOLVE AND SEE IF A MOLE OF M&M'S CAN FILL UP YOUR SCHOOL.

    DAY 3    OPTIONAL
                 STUDENTS MAY NEED TIME TO FINISH CALCULATIONS AND COMPLETE A LAB
                        REPORT.  THE LAB REPORT SHOULD HAVE A PURPOSE, PROCEDURE, TABLES OF
                        ALL THE DATA COLLECTED, AND A PAGE SHOWING ALL THE
                        CALCULATIONS.  THERE SHOULD BE A CONCLUSION FROM EACH STUDENT
                        WITH AN OPINION OF WHAT THEY LEARNED.
 
ENGAGEMENT:
    TELL STUDENTS THAT THEY CAN EAT THE CANDY AFTER THE EXPERIMENT.
     HAVE STUDENTS PREDICT HOW MUCH OF THE SCHOOL WILL BE FILLED BY A MOLE OF M&M'S.

EXTENSIONS:
    THIS IS A GOOD INTRODUCTION INTO MASS-MOLE-PARTICLE PROBLEMS.