Curated OER
Pet Overpoulation: Fact or Fiction
Students examine the benefits of spaying and neutering animals. In this animal welfare lesson, students define the terms "spaying" and "neutering." Students listen to a lecture about the benefits of spaying and neutering and complete a...
Curated OER
Give Peace A Chance: Nonviolence as a valid strategy for social change
Students analyze how people solve conflicts. In this conflict resolution instructional activity, students look at Mahatma Gandhi and Martin Luther King's nonviolence movements. They see the reasoning behind nonviolence and how it...
Curated OER
Energy Efficiency: It really IS important!
Students compare the energy needed to produce new products versus recycling. In this physics lesson, students brainstorm ways to save energy. They create a presentation about the correlation between conserving energy and energy costs.
Curated OER
Policy Debate / Community Meeting on Climate Change
Students investigate how natural hazards can present personal and societal challenges as well as the cost involved. They assess the risk analysis considerations with global warming and their impacts on an ecosystem. An estimate of the...
Curated OER
Non-Calculator Maths Pack
In this math skills learning exercise, learners first read a one page information sheet about common errors in arithmetic calculations. Students then solve 39 multiplication problems with 3 digits. Learners solve 29 long division...
Curated OER
Paramecium
In this paramecium learning exercise, students sharpen their science skills as they color the parts of a paramecium according to the instructions and then respond to 15 analysis questions.
Curated OER
Teaching Radicals in Less Than Five Minutes
High schoolers simplify complex radicals following a specific technique. In this math instructional activity, students simulate the process using several decks of cards. They explore real life applications of radicals.
Curated OER
Coal and the Environment
Students read about how burning coal affects the environment. After students finish reading about how burning coal affects the environment they have a group discussion to discuss what they thought about the information.
Curated OER
The Perils of Drinking Water
Students determine the presence of drugs in water. In this chemistry instructional activity, students experiment on water samples using thin layer and column chromatography. They determine the concentration of drugs present using...
Curated OER
24 Quilted Gems
Students create quilt blocks in order to create their very own quilt. Students follow the given directions and patterns to create a variety of quilts and quilt blocks. The emphasis is on design and color combinations.
Curated OER
Understanding Estuaries
Learners work together to develop their own estuarine ecosystem in an aquarium. They observe the aquarium daily and record them in a notebook. They discuss the different interactions they see with the class.
Curated OER
The Nuclear Option
Students explore the history behind judicial nominations as well as the filibuster process. They discuss and debate filibuster merits and detractions, its use and alleged misuse, and what some Congressional leaders are currently doing...
Curated OER
Solving Systems of Equations by graphing for Algebra One
Students watch the teacher demonstrate on an overhead projector how to graph various equations before the students try them on their own. They start with pencil and paper; once they grasp the concept they move on to punching in the...
Curated OER
The Old Chicken Run Problem
Sixth graders apply problem solving strategies to work with a real life situation in which they need to determine the area. They determine the area of chicken runs that are rectangular in shape when give a partial perimeter.
Curated OER
Parched! No Water, No Town
Students discuss the benefits of water conservation. Given a data sheet, they document their water usage over a specified period. Water usage data is graphed and analyzed. Students discuss ways in which they can conserve water.
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: The Linear Combination Method/elimination Method
Twenty problems present a variety of practice using the linear combination/elimination method to solve linear systems. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem...
Math Planet
Math Planet: The Elimination Method for Solving Linear Systems
Provides examples and a video lesson that illustrates how to use the elimination method to solve linear equations.
Khan Academy
Khan Academy: Elimination Method Review (Systems of Linear Equations)
Explains how to use elimination to simplify and solve systems of linear equations. Includes practice problems and explanations of their solutions.
Texas Education Agency
Texas Gateway: Solving Systems of Equations Using Elimination
Given a system of two equations where at least one of the equations is linear, the student will solve the system using the algebraic method of elimination.
Math Graphs
Houghton Mifflin: Math Graphs: Elimination Method 27 [Pdf]
Students use the elimination method to solve simultaneous equations. The exercise is available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Elimination Method 28 [Pdf]
Students use the elimination method to solve simultaneous equations. The exercise is available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Elimination Method 29 [Pdf]
The exercise investigates the elimination method for solving a system of linear equations. The two graphs are available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Elimination Method 30 [Pdf]
The exercise investigates the elimination method for solving a system of linear equations. The two graphs are available in PDF format.
Texas Instruments
Texas Instruments: Solving Systems of Equations: The Method of Elimination
Whenever a system of n equations with n unknowns is given there are several methods that can be used to find the solution to the system if a solution exists. In this activity, you will use the method of elimination to solve systems of...
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