Curated OER
Complex Roots: A Graphical Solution
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...
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Exploring Complex Roots
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.
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How many isosceles triangles can you find?
Seventh graders recognize the characteristics of isosceles triangles. In this isosceles triangle lesson, 7th graders use geoboards to create isosceles triangles. Students record results and explain why they have an isosceles triangle.
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Water filtration with Plants
Sixth graders explain how soil and plants effect contaminated water in nature. In this filtration lesson, 6th graders work in groups to test biofiltration units. Students determine which biofiltration units work best and how they...
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Dirty Decomposers
Students explore the ecosystem by conducting a ziploc bag experiment. In this recycling lesson, students identify decomposer organisms in our environment and how they speed up the recycling process. Students utilize a ziploc plastic bag,...
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Winter Season
Students recognize the relationship between Earth's tilt and the Winter season. In this Winter instructional activity, students work in pairs to complete make frost and design snow goggles. Students experiment a hand lens to study the...
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Money in Elections:What is it Doing to America?
Students investigate the role of money in American elections. In this current events lesson, students read and discuss articles that address money and political campaigns. Students may conduct further research on the topics presented in...
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The Window Problem
Students identify patterns and compute formulas to solve the problems. In this algebra lesson, students come up with a rule given a pattern, and analyze the relationship between data and graphs.
Texas Instruments
A Tale of Two Lines
Students graph systems of equation. In this calculus instructional activity, students graph their lines on a TI calculator. They identify the point of intersection and the type of solution.
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Symmetric Secant
Mathematicians use a symmetric secant line to prove the derivative at a point. In this trigonometry lesson, students create secant lines on the navigator to analyze the derivative. They move the lines around and make observations.
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Angles and Similarity
Students identify triangles as similar or congruent. For this geometry lesson, students drag triangles around on the navigator to see the effect of different angles on the shape of the triangle. They discuss angle similarity and angle...
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Triangle Midsegment
Learn how to calculate the length and midsegments of triangles. Students differentiate between similar and congruent triangles. They create a spreadsheet with their findings.
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Scale Factor Area Perimeter
Mathematicians compare triangles at different scales. In this geometry lesson, young scholars calculate the area and perimeter of triangles. They use the Ti to make observation of the change that takes place as the triangles are dilated.
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Area Measures and Right Triangles
Your class will investigate the relationship among different triangles. This geometry lesson, demonstrates how to make a connection between triangles and the Pythagorean Theorem. They identify the missing side or angle of a triangle.
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Transformations: Translations
Students perform transformations and translations using polygons. In this geometry lesson, students perform transformations on a coordinate plane. They identify the image and pre-image of each figure.
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Transformations: Reflections
Students perform transformations on their graphs. In this algebra lesson, students identify the pre-image and image. They find and identify congruent shapes and isometry.
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Domain and Range 2
How do you identify the domain and range of the function? As learners find out it's as easy as creating a graph. They'll identify the domain and range of a relation from its graph, write symbolic expressions describing the relationship...
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Standard Form of Quadratic Functions
Students factor quadratic equations. In this algebra lesson, students identify the factors and use them to graph the parabola. They find the parameters and vertex of each graph.
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Quadratic Functions and Stopping Distance
Students solve quadratic equations. In this algebra activity, students factor and graph quadratic functions. they use the properties of quadratics to calculate the distance.
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Extraneous Solutions
Learners find the roots of quadratic equations. In this algebra lesson, students solve radical equations and identify the positive and negative roots. They graph and analyze their functions.
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Napolean Triangle
Students investigate the Napoleon triangle theory. In this polygon lesson, students differentiate between the boundary points, interior and lattice point of a polygon. They apply concepts of equilateral triangles to solve...
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Coral Reef Community
Students explore the coral reef. In this food chain activity, students study the plants and animals of the coral reef and how they each play a role in that ecosystem. They participate in a class play to demonstrate the types of animals...
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Rocky Shore Food Web Drama
Students explore food chains. In this ecosystem lesson, students discover how plants and animals rely on each other for survival. Students research the rocky shore ecosystem and create a skit representing the ecosystem.
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Science: Wind Power
Students build models of wind turbines and experiment with different designs that will improve efficiency. Students will understand the use of wind power as a renewable resource.