How to Use “Measuring My Hand.”

The optional participant handout, Measuring My Hand, is designed to help participants refine their skills in estimating portion sizes and learn to use their hands as a measuring tool.  The approach is based on intervention materials from the Women’s Health Initiative.

To use the handout, you will need the following materials:
C	The handout, Lifestyle Balance Problem Solver.
C	An index card.
C	Pens.
C	Six “stations” set up around the room.  At each station, place the following:
1.	Play dough, set of measuring spoons, table knife for leveling.
2.	Ruler, calculator.
3.	Play dough, set of measuring cups, set of measuring spoons, table knife for leveling.
4.	Ruler, calculator.
5.	Set of measuring cups, large bowl, smaller bowl, glass marbles or a food item that survives handling (such as dried beans or lentils).  
6.	Fat Counter, calculator, 1-2 rulers, food scale, measuring cups and spoons, table knife for leveling, 5-10 food samples--either actual foods, food models, or play dough molds (the foods chosen should be commonly eaten high-fat and high-calorie foods, such as a hamburger patty, chicken leg, pork chop, ice cream, peanut butter, margarine, mayonnaise, sugar cookie, coffee creamer, whole milk in a glass, oil in a large pan).  Weigh or measure the food samples in advance.  Optional: Also have on hand the following tools to help the participant visualize serving size amounts: Small paperback book (4x7x1/2"=9 oz.), mayonnaise jar lid (3 oz.), deck of cards or audio cassette tape (3 oz.), lipstick tube (1 oz), golf ball (1 oz), 3.5" computer disk (3-5/8x3-1/2x1/16"=1/2 oz.), tennis ball (2-1/2" diam.=medium fruit).

Note:	To save time or reduce the amount of play dough manipulation (e.g., for participants with arthritis), you may want to pre-measure play dough amounts for thumb tips (1/2 teaspoon, 1 teaspoon, 1-1/2 teaspoons) and fists (3/4 cup, 1 cup, 1-1/4 cups), shaped into thumb-tip or fist-like mounds.  Have the participant compare his or her thumb tip and fist to the samples and select the one that’s closest to his or her size.

Introduce the handout by saying that, over time, many of us become more complacent about or less interested in the amounts we are eating.  This may be one reason for weight plateaus or weight gain.  The participant might be keeping thorough self-monitoring records and meeting his or her fat/calorie goals in writing but still eating more than he or she realizes because of misjudgments in serving size estimation.  Even small misjudgments can add up, particularly when it comes to high-fat/calorie foods and foods eaten often.  The purpose of the handout is to give the participant a chance to check up on and refine his or her portion size estimating skills.
Have the participant move through each of the stations and complete the worksheetAlso, give the participant an index card on which to record his or her hand measurements (the purpose is to provide a reference card to take home and carry in a wallet or purse).  Then provide the actual measurements and fat grams for the foods at the stations.  Ask the following or similar questions to stimulate discussion: 
C	What tools made it easier to estimate serving sizes?
C	Which foods were the most difficult for you to estimate?  Why?  

Make the following points:
C	You don’t need to be perfect.  The aim is to come up with reasonable estimates.  
C	Focus on avoiding these two major sources of error:  underestimating sizes of higher-fat/calorie foods, and underestimating serving sizes of foods you eat often.  
C	Keep the index card in your purse or wallet or post it on your refrigerator.

Finally, have the participant complete the problem solving worksheet with regard to one problem related to one of the stations.

Measuring My Hand.

Station 1.	Mold a piece of play dough into the shape and size of your thumb tip (up to the first knuckle).   Measure the amount using the measuring spoons.  

		My thumb tip is equal to              (number of teaspoons).

Station 2.	Use a ruler to measure:	My thumb width =               
													My thumb length (to the second knuckle) =        													My thumb thickness =               
					Then multiply: 
					(Width        ) x (lengh         ) x (thickness       ) x 0.6 =         ounces

		My entire thumb is equal to                 (number of ounces).

Station 3.	Mold a piece of play dough into the shape and size of your fist.  Measure the amount using t measuring cups.
	
		My fist is equal to                                 (number of cups).

Station 4.	Use a ruler to measure:	My palm length =               
													My palm width =                
My palm thickness =               	
	
		Then multiply:  
		(Length           ) x (width           ) x (thickness          ) x 0.6 =              ounces	
The palm of my hand is equal to                 (ounces).		

Station 5.	Grab a handful of the food from the larger bowl and place it in the smaller bowl.  Measure the handful using a measuring cup.  Record the amount of one handful below.  Repeat using both hands and record below as two handfuls.

		My one handful is equal to                         (number of cups)
		My two handfuls are equal to                       (number of cups) 

Station 6.	Look at the sample foods.  Estimate the serving sizes using your hand measurements on the previous page.  Then use the Fat Counter to look up the fat grams/calories.  

Food	What I think the serving size is	Actual 
serving size	Fat grams in actual serving