Domain Reference Foldable
Grade Level(s): High
School
Content Area: Process Area:
Numbers and Operations Problem-Solving
Algebra Reasoning
and Proof
Geometry Communication
Measurement Representation
Data Analysis,
Statistics, and Probability Connections
Common Core Standards:
CCSS.MATH.CONTENT.HSF.IF.A.1: Understand that a function
from one set (called the domain) to another set (called the range) assigns to
each element of the domain exactly one element of the range. If f is a function
and x is an element of its domain, then f(x) denotes the output of f
corresponding to the input x. The graph of f is the graph of the equation y =
f(x).
Targeted Needs of Student:
Finding the
domain and range of a graph, seeing a visual reference of domain an range,
interpreting functions and their graphs
Goal:
To provide
students with a visual reference of domain and range in functions
Materials Needed:
1. Small envelopes
2. Colored Paper
3. Scissors
4. Glue
5. Graph paper with functions
printed on it
Explanation/Summary:
The students
will first make a small envelope or be given a small envelope. They will then
place the graph paper with functions in the envelope and glue the envelope at
the bottom of their paper. These graph paper rectangles need to be small –
about 5 in by 2 in. Then the students will cut the paper into two flaps that
fold and one flap that is above the flaps and below the flaps. (See picture for
reference) On the two flaps that fold in, students will write DOMAIN. Then to
determine the domain points, students will place the graph paper with functions
on it inside the colored paper foldable and fold in the two flaps that say
DOMAIN on it. It helps to allow students to see where those points are against
the sharp edge.
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