- Objective: Students will explore the use of percents
through the management of classroom fish. This lesson
will be in two parts. It will first be conducted at the
start of the program and then concluded at the end.
- MST Standard 3: Number Sense and Numeration - Students
will: understand mathematics and become mathematically
confident by communicating and reasoning mathematically,
by applying mathematics in real-world settings, and by
solving problems through the integrated study of number
systems, geometry, algebra, data analysis, probability,
and trigonometry Key Idea: Students use NUMBER SENSE AND
NUMERATION to develop an understanding of multiple uses
of numbers in the real world, use of numbers to communicate
mathematically, and use of numbers in the development
of mathematical ideas.
Performance Indicators: Students will understand, represent,
and use numbers in a variety of equivalent forms (percent).
Students will understand and apply percents through a wide
variety of hands-on explorations.
- Students will focus on how to determine the percent
of a number. After reviewing the basic concepts and working
on practice problems, the students will use their knowledge
to perform studies on their fish. The students will be
given the task of being a fish merchant. They will be
given a set amount of money to start their business. They
will be responsible for raising and then selling their
fish for a profit. They will determine the amount of food
to feed the fish based on a percentage of their total
weight. The students will record the percentage of weight
gain that occurred during the program. They will set a
price for the fish based on the weight. They will create
an advertisement to sell their fish. They will then subtract
the cost of raising the fish from the amount they sold
them for. The students will conclude if they made a profit
or not and determine what is the percentage of this gain
or loss from their original amount of money. Their final
procedure will be a reflection of what they did. They
must hypothesize how they could make an additional 10%
profit. Then they must be able to explain the entire procedure
to students younger than themselves.