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Curated OER
Solving Linear Equations
In this linear equations worksheet, students solve six linear equations and check their work. Then they translate the next 4 problems into an equation and solve those too. Students first combine like terms when necessary and then solve...
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Measuring Supporting Structures
Young scholars calculate the volume of the Pantheon's columns and estimate changes in weight given different parameters.
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Solving Multi-Step Equations (Ch. 2.3)
Eighth graders solve multi-step equations, showing each step in their solution. This multi-step equations lesson includes sample problems to complete as a class, clear step by step instructions for the student and a linked comic strip...
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Triangle Exterior Angles Theorem
Young scholars identify the measure of missing exterior angles. In this geometry lesson,students define and apply the exterior angle theorem to solve problems. They use Cabri software to create different angles and make investigations.
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Navy Sail Design
Young scholars use the Pythagorean Theorem to explore sailboat design. In this Pythagorean Theorem lesson, two sides of a triangular sail are measured, and the theorem is used to calculate the third side. A worksheet, bulletin board...
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Rockets: Kinematics or Energy?
Students construct model rockets, measure and record the height of the launch. In this creative lesson students use different methods to calculate velocity and height data from their launched rockets.
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The Equation Behind an Old Trick
In this algebra instructional activity, 9th graders figure out their age and their house number using a specific formula. They must follow each step correctly to get it right.
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Find Slope
In this algebra worksheet, 9th graders are given a pair of coordinates and asked to find the slope of the line using the point slope formula. There are 5 questions with an answer key.
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Quadratic Equations
In this algebra worksheet, students define the word "quad" and solve problems with quadratics. They factor polynomials by the quadratic formula and completing the square.
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Maxima Minima Problems
For this algebra worksheet, students find the maxima and the minima of the parabola. They calculate the maximum and minimum area and apply the formulas of polygons to help them solve equations. There are 8 questions with an answer key.
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Number and Algebra: Again and Again
Learners use a given spreadsheet to investigate an iterative process by changing the variables. They design their own spreadsheet to investigate the iterative process.
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Fences and Posts
Fifth graders use Geoboards to demonstrate how shapes can be made by looping the rubber bands over the nails. They make a triangle on their Geoboards. At least one side of the triangle should be either horizontal or vertical. The picture...
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The Box Problem
Students investigate the concept of functions and how they are used with polynomials. They practice finding the zeros of functions and graph polynomial functions for the help of giving solutions. Students interpret the curve of a line...
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Time-Axis Fallacy and Bayes Theorem
Students determine that knowledge of an event's outcome can affect the probability of the unknown outcome of an event that has already occurred.
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Faster speed-Shorter Time
Students calculate the inverse variation, and speed given the formulas. In this algebra lesson, students investigate properties of conics, focusing on the hyperbola. They identify the distance between the directrix and other parts...
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How Far Am I Traveling
Students solve for missing sides using the Pythagorean theorem. In this algebra instructional activity, students derive the six trigonometric values using the right triangle. They relate the Pythagorean theorem to the distance formula.
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Converting Celsius to Fahrenheit
In this Algebra I instructional activity, 9th graders explore an alternate method for converting Celsius to Fahrenheit and determine the algebra behind the shortcut. The one page instructional activity contains one problem. ...
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Why Does the Rule of 72 Work
In this algebra learning exercise, students solve a word problem by rewriting it using algebraic symbols. They calculate the interest compounded over a period of time using the Interest Formula. This learning exercise includes 1 problem...
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Applications of Parabolas
In this algebra worksheet, 11th graders rewrite word problems using algebraic symbols. They relate parabolas to the real world and calculate the breaking distance using the distance formula they come up with. There is answer key.
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Slope of a Function
Seventh graders explore the concept of the slope of a line. They see how to determine the direction of the line. Also students are introduced to the slope intercept algebraic expression in conjunction with the rise/run.
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Applications of Properties of Quadrilaterals in the Coordinate Plane
Students explore the concept of quadrilaterals. In this quadrilaterals lesson, students use the slope formula, midpoint formula, and distance formula to justify that a given quadrilateral is a parallelogram.
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Properties of Logarithms
Students explore the concept of logarithms. In this logarithms lesson plan, students graph logarithms on their Ti-Nspire calculator. Students describe the shapes of their graphs by identifying slope, y-intercepts, and...
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Pythagorean Theorem
Eighth graders use formulas to solve Pythagorean Theorem problems. They explore the hypotenuse, adjacent angles and legs of a triangle. Given any two integers in a problem, 8th graders identify and complete Pythagorean triples.
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An Introduction to Counting
Learners define the counting principle and how it relates to integers. In this algebra lesson, students add and subtract using the addition and multiplication principles. They solve problems using combination and permutations.