Lesson Plan
Curated OER

Midsegments of a Triangle

For Teachers 9th - 12th Standards
High schoolers analyze midsegments of triangles in this instructional activity. They use Cabri Jr. software to observe the relationships between interior angles and midsegments of triangles. Specific instructions for creating this...
Lesson Plan
Texas Instruments

REAL LIFE REAL WORLD Activity - Surveyor

For Teachers 9th - 12th Standards
Learners investigate surveying in this secondary mathematics lesson. They will explore a real world application of geometry and trigonometry as they create a plot plan using a geometry utility and calculate the area of the land parcel.
Lesson Plan
Curated OER

Ratios in Right Triangles

For Teachers 9th - 12th Standards
Learners calculate the sides of right triangles in this trigonometric ratios lesson. They use Cabri Jr. software and TI-83 or TI-84 calculators to find the side lengths and their ratios to each other for various triangles. The provided...
Lesson Plan
Curated OER

Properties of the Centers of a Triangle

For Teachers 9th - 12th Standards
High schoolers investigate properties of the four centers of a triangle and explore a special property of the circumcenter and orthocenter of a triangle. This lesson requires the use of Cabri, Jr.
Lesson Plan
Texas Instruments

The Leaning Tower of Pisa

For Teachers 9th - 12th Standards
Learners estimate the equation of a line, angle of elevation and depression in this math lesson. They analyze e famous landmark design and make connections to algebra and geometry. They will also generate an equation, model the x and y...
Lesson Plan
Curated OER

Similar Triangles and Proportions

For Teachers 9th - 12th Standards
Pupils investigate similar triangles and proportions as they make conjectures about the length of sides of similar triangles. For this instructional activity, have your class construct similar triangles using Cabri Jr so that they share...
Lesson Plan
Curated OER

Trigonometric Ratios

For Teachers 9th - 12th Standards
Learners investigate properties of the unit circle using sine, cosine and tangent. They analyze the answers to questions about the unit circle based on a right triangle.
Lesson Plan
Curated OER

Solving Equations with Solve It

For Teachers 6th - 9th Standards
Pupils solve equations using a TI in this algebra lesson. They will practice solving equations and systems of equations on a TI. The TI-Navigator is required for this assignment.
Lesson Plan
Curated OER

Properties of Parabolas

For Teachers 9th - 12th Standards
Learn to identify the properties of parabolas. Learners define parabola as the locus of all points equidistant from a fixed point and a fixed line. Also, interpret the equation for a parabola in vertex form and gain a visual...
Lesson Plan
Curated OER

Border Patrol

For Teachers 9th - 12th Standards
Young scholars investigate systems of linear inequalities as they apply to an area of land. They practice graphing systems and determine if a point lies in the solution. 
Lesson Plan
Curated OER

Exponential Reflections

For Teachers 9th - 12th Standards
Explore the natural log function through the investigation of inverse of the exponential functions by plotting the inverse of the exponential solution points.  Students examine the results to determine that the inverse is the...
Lesson Plan
Curated OER

Cramer's Rule ID: 8793

For Teachers 9th - 12th Standards
Mathematicians are introduced to Cramer’s Rule and use it to solve three systems that have one solution, no solutions, and an infinite number of solutions.  Students use TI-Nspire to graph the systems to verify their answers and...
Lesson Plan
Curated OER

Asymptotes and Zeros

For Teachers 9th - 12th Standards
Learn how to explore rational functions and investigate the graphs rational functions and identify its singularities and asymptotes.  High schoolers approximate the solutions to rational equations and inequalities by graphing.
Lesson Plan
Curated OER

Zeros of Polynomials

For Teachers 9th - 12th Standards
Students graph polynomials. In this Algebra II lesson, students investigate the graph of a polynomial to determine the value and the number of zeros. This lesson requires the use of a graphing calculator.
Lesson Plan
Curated OER

Sequence Graphs

For Teachers 9th - 12th Standards
Investigate arithmetic and geometric sequences by using a graphing calculator to determine if a sequence is linear or exponential.
Lesson Plan
Texas Instruments

Buying Your First New Car!

For Teachers 11th - 12th Standards
Learners explore exponential growth and decay using M&M’s in this Algebra II/Pre-calculus lesson. They investigate the cost of a new car by calculating depreciation and payments.
Lesson Plan
Curated OER

Getting Triggy With It

For Teachers 9th - 12th Standards
The concept of sine and cosine is explored in this lesson where students graph sine and cosine graphs using a transformation application on the graphing calculator.  Students change the coefficients for the amplitude, period,...
Lesson Plan
Curated OER

Reference Angles

For Teachers 9th - 12th Standards
Learn how to measure the reference angles in degrees and radians.  Learners find reference angles that are coterminal with a given angle.
Lesson Plan
Curated OER

AP Calculus Exam Prep

For Teachers 11th - 12th Standards
Pupils practice sample questions from the AP Calculus Exam. They solve calculus problems involving bounded regions, integration, derivatives, and limits. They then answer free response and multiple choice questions on the above mentioned...
Lesson Plan
Curated OER

Complex Roots: A Graphical Solution

For Teachers 9th - 12th Standards
Using their Ti-Nspire to determine the solutions of parabolas, students explore the concept of complex roots.  Students determine if parabolas have real or complex roots.  Students determine the the axis of symmetry and the...
Lesson Plan
Curated OER

Discriminating Against the Zero

For Teachers 9th - 12th Standards
Students explore the concept of quadratic equations.  In this quadratic equations lesson, students find the roots or zeros of quadratic equations using the quadratic formula.  Students give examples of functions with 2 real,...
Lesson Plan
Curated OER

Exploring Complex Roots

For Teachers 9th - Higher Ed Standards
In exploring the concept of complex roots, students find the axis of symmetry and roots of parabolas.  Then, they discuss what makes a solution complex and how to identify functions with complex roots.
Lesson Plan
Curated OER

Exploring Quadratic Equations

For Teachers 11th - Higher Ed Standards
By stretching and translating the parabola given and determining the effects on the equation, students explore finding the vertex and zeros of a parabola and relate them to the equation. Students also view the intercept form to determine...
Lesson Plan
Curated OER

TI-Nspire Activity: What Does Your Representation Tell You?

For Teachers 9th - Higher Ed Standards
By learning to select the best representation for three meal plans, students compare three meal plans to determine the best choice. Data for the meal plans is sorted on a table, as an algebraic equation, and graphed on a coordinate grid....

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