New York State Performance Indicator: A.N. 2
Review location of keys on TI-82 needed for
Reference the teacher chart located on
Write five visual prompts on the board to find
Use the same procedure for the next four
Independent practice to be completed during
Collect for participation grade.
Time permitting, student volunteers will review
The square root of a number is one of the two equal
Perfect square is a number whose square root is rational.
Rational approximation is close to but not equal to the
The radical symbol is .
The is used to
indicate the nonnegative square root of a
The - expresses the negative square root of a number.
The ± expresses both positive and negative square roots.
TI-82 work sheet
Turning the TI-82 ON:
Finding “Square Root” on the TI-82:
Press “blue second” , then x squared
Students will make a notebook entry containing the
Put five square root problems on the overhead, project
Students are to independently find the square root of each
Ask a student volunteer to choose a problem to answer at
If the student has answered the problem correctly, ask if
Repeat for all example problems.
For independent practice, use a separate sheet of
Collect independent practice to be used as participation
Rational numbers are numbers that can be expressed in the
¼, -¾, ½
A rational number can be expressed as a decimal that
Example # 2
An irrational number can not be repeating or terminating
Example # 3
Student will independently classify the square root of
After completing worksheets, students will determine as
Group will confirm answers using the TI-84 Plus Silver
Collect independent practice work to be used as a
Solicit responses from students to come and write their
Teacher will give a series of fractions and square roots
Using the overhead calculator, student volunteer will find
Teacher will demonstrate to students ordering a given set
Students are given independent practice to order real
Collect as a participation grade.
Independent practice using page 107 Algebra 1.
Time permitting, review as a group using the overhead
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