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MEASURE.TXT
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1994-11-04
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Math Idea #2
Measurement
Objectives:
The students will identify equivalents among 1 cup, 1/2 cup,
and 1/4 cup.
The students will identify objects that represent 1 cup, 1/2
cup, and 1/4 cup.
Rationale:
After your class uses "5 A Day Adventures" to explore Serving
Size Land in the Land of 5 a Day, reinforce the different ways
that servings of various foods are measured. The measurements
differ and present a challenge as the students learn what
equals 1 serving. They will also learn how to add servings to
reach their goal of eating 5 fruits and vegetables each day.
This activity will help students to relate everyday objects to
these specific amounts, and will give them a hands on activity
with fractions.
Serving sizes are important in calculating the amounts of
fruits and vegetables that add up to 5 a Day.
1 serving = 3/4 cup of 100% juice
can be = 1 cup of leafy greens, such as lettuce,
any of spinach, collards, kale
these = 1/2 cup canned or cooked vegetables such as peas
= 1/2 cup canned fruit, such as pineapple chunks
= 1/4 cup dried fruit, such as raisins
Materials:
- 1, 1/2, and 1/4 cup measuring cups for each group.
- various foods to measure -- check with your food service
director
For 100% juice -- water (or juice)
For leafy greens -- any green leaves (outer lettuce leaves)
For dried fruit -- use raisins
For canned fruit -- any canned fruit chunks (pineapple)
For cooked vegetable -- shredded carrots, canned peas
everyday objects representing the amounts of 1, 1/2,
and 1/4 cups (see activity)
Introduction:
1. Show students different size measuring cups (1 cup,
1/2 cup, and 1/4 cup), and the foods they will be
measuring.
2. Determine which foods should be placed into which
measuring cup to make 1 serving. For instance.
Use the 1 cup to measure 1 serving of leafy greens
Use the 1/4 cup to measure 1 serving of dried fruit
-- raisins
Use the 1/2 cup to show 1 serving of a canned fruit
or cooked vegetable
Use a 1 cup liquid measuring cup to measure 3/4 cup
juice (or water)
3. Fill each measuring cup with the appropriate fruit or
vegetable.
4. Discuss with students the fact that fruits and
vegetables, do not take the shape of the container, but
juice (a liquid) does.
5. Show everyday objects representing 1 cup, 1/2 cup,
and 1/4 cup to which students can relate. (Small box of
raisins, milk carton from cafeteria, small juice glass
that holds 6 oz.)
Group Activity:
Give each group measuring cups of 1 cup, 1/2 cup, and 1/4 cup.
Have the students answer the following questions by testing
equivalents using raisins, water, or material in the
classroom, such as aquarium gravel, or any other appropriate
material.
- How many 1/2 cups = 1 cup? _______
- How many 1/4 cups = 1 cup? _______
- How many 1/4 cups = 1/2 cup? _______
- How many 1 cups = 2 cups? _______
- How many 1/4 cups = 2 cups? _______
- How many 1/2 cups = 2 1/2 cups? _______
- How much is a handful of raisins? ______
- If a handful of raisins is one serving, how many servings
would 2 handfuls be? _______
Individual Activity:
Have a contest to see who can bring in objects closest to 1
cup, 1/2 cup, and 1/4 cup. (Nothing breakable)!
Related Activities:
* Follow this activity with making the Fruit and Juice
Breakfast Shake from the Kids Cookbook. This recipe
requires measurements of 3/4 cup, 1/2 cup and 1 banana.
Have the students determine how much of each ingredient
will be needed for this activity and have kids bring the
ingredients. Ask the food service director to help with
the mixing -- do this activity in the school cafeteria.
* Have the food service director at school arrange for a
juice snack where kids measure 1 serving of juice for
themselves. This could be done at tables; have students
measure and serve their classmates. To make 1 serving,
students could use a measuring cup to measure the
appropriate amount, then pour that amount into a juice
glass or even a water glass to see how much of the glass
is filled. (Drinking a large water glass of 100% juice
would be more than 1 serving, how many servings would it
be?)
* Extend equivalents to include teaspoons and tablespoons,
cups, pints, quarts, ounces, pounds, etc.
* Have the class participate in setting up a salad bar.
* Invite the school's food service staff to give a
demonstration using different techniques of measurement.
5 A Day Adventures: Math Idea # 2