How
Much is Enough?
Lesson
5
Grade
Level:
9-10
Subjects(s):
metric measurement
Learner
Outcomes:
-
Students
will gain an understanding of volume and capacity. They will be able
to measure this using the correct metric units.
Duration
of Lesson:
30-45 minutes
Materials:
30 cm x 40 cm pieces of card stock or poster board, Colored pencils or
markers, metric rulers, tape, scissors.
Technology
Tools/Courseware:
Computer, word processor, presentation software
Teacher
Notes:
-
Emphasize
to student that the correct designation for the liter is the cursive lowercase
letter L. In typing use the capital letter L to avoid confusion with
the number 1.
Procedures:
Introduce
the liter as the metric unit for measuring volume or capacity. Explain
that the liter is based on the meter. It is defined as a cube 10
cm wide by 10 cm tall and 10 cm deep. Its volume is 1000 cm3.
-
Have
student layout the pattern for their liter by following the pattern of
the attached diagram. Once the pattern is cut out, they can fold
and tape to create their liter. Attachment
-
Before
assembling the liter, students can decorate the outside of the liter with
a design of their choosing, or with metric facts and figures, i.e. the
prefixes, metric and English equivalents etc. Have students draw
lines horizontally and vertically on one of the sides, spaced 1 cm apart
to represent cubic centimeters.
-
If
this activity is done as group work, have some members of the group create
a cubic centimeter which is laid out exactly as the liter except that the
section are only 1 cm x 1 cm.
Students
should grasp the concept that the liter cube is 10 cm3 x 10 cm3
x 10 cm3 or 1000 cm3. Each cm3 is
.001 (1/1000) of a liter or 1 ml. Most students can relate to getting
a shot from the doctor, in which the hypodermic needle is measured in cc
or cubic centimeters equivalent to mL.
-
Introduce
the unit for mass at this time by explaining that the liter is used as
the standard for the kilogram. A gram is defined, as a volume of
distilled water equal to 1 cubic centimeter, at a temperature of 4 degrees
Celsius. Therefore, a liter of water will have a mass of 1 kilogram.
-
Q: Why does the standard require a limit of 4 degrees Celsius?
-
A: Water will contract or expand as its temperature changes; therefore
its volume will change as the temperature changes. To remain consistent
a limit is set for its temperature.
-
Q: Why is distilled water used as a standard?
-
A: Distilled water is pure water with all dissolved substance removed,
so its mass is consistent. Salt water or water that has various dissolved
substances would have different densities; therefore a different mass.
Modifications:
-
Prepare
cutouts for the liter before hand.
Enrichment/Activity:
-
Use
Plexiglas and adhesives to construct the liter model instead of paper.
This container can then be used to hold liquids.
-
Calculate
the volume of the classroom by measuring in meters.
-
Use
the word Liter in Haiku poetry for a class
publication.
Evaluation/
Assessment:
-
Students
should be able to estimate the number of liters in certain English units,
i.e., quarts and gallons. Rubric
-
Introduce
the concept of density. Have students determine the density of various
objects.
-
Have
students use the term liter in Haiku poetry.
Create a collection of their work and make a class publication using a
word processing program, or presentation software.
West
Virginia Instructional Goals and Objectives
10.9 10.11 10.84 10.91 10.94 10.95 10.97
9.34 9.35 9.51 9.53 9.54
AM 1.11
National
Standards:
Understands and applies basic and advanced properties of the concepts of
measurement
Uses listening and speaking strategies for different purposes.
Gather and uses information for research purposes.
Understands the nature of scientific inquiry.
References:
W.V.D.E.
Metric Means Measure, Implementation Guide; compiled by Richard E. Wilkes
and James R. Myers, Fourth printing 1977
Dale
Faughn (Kentucky Poet Laureate)
Co-Director,
Pilot Writing Project
Caldwell
County High School
Rt.
1, Box 137B
Princeton,
Kentucky 42445
Mail
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