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Worksheet
Curated OER

Proofs

For Students 8th - 11th
In this geometric proof worksheet, students compose 20 triangle congruency proofs. Students will decide if there is enough information in problems 1-6 to prove if any triangles are congruent. In problems 17 to 20, students use given...
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Worksheet
Curated OER

Proof that One Equals Zero and Zero Equals Two

For Students 11th
In this algebra worksheet, 11th graders complete proofs that show why properties are true. There are 2 proofs given with 8 required steps.
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Worksheet
Curated OER

Expressions

For Students 8th - 9th
In this expressions worksheet, students solve and complete 16 different problems related to various expressions. First, they define each of the listed terms and know each given property. Then, students state the order of operations and...
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Worksheet
Curated OER

Solving Equations

For Students 11th
In this Algebra II worksheet, 11th graders use the properties of equality to solve multi-step equations in one variable.  The tow page worksheet contains explanation, guided examples, and fifteen practice problems.  Answers are not...
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Lesson Plan
Curated OER

Angle Action 1,2 and 3

For Teachers 8th - 10th
Students investigate angles through construction. In this geometry lesson, students use a protractor to identify the measurement of an angle. They identify angles cut by a transversal and two parallel lines.
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Lesson Plan
Curated OER

Linear Equations

For Teachers 9th
Ninth graders solve linear equations.  In this Algebra I lesson, 9th graders investigate the properties of equations (Reflexive, Symmetric, Transitive, Substitution, and Transformation Properties) and use these properties to solve linear...
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Handout
Lockport City School District

Reasons for Geometric Statement/Reason Proofs

For Students 8th - 11th Standards
Stuck trying to remember the formal language of a geometric proof? Never fear, this handout has them all ready to go. The reasons are sectioned by topic so this handy guide is ready when you are to tackle those two column proofs. 
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Lesson Plan
EngageNY

Congruence Criteria for Triangles—AAS and HL

For Students 9th - 10th Standards
How can you prove it? Guide classes through an exploration of two possible triangle congruence criteria: AAS and HL. Learners connect this criteria to those previous learned and also explore criteria that does not work. The lesson...
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Lesson Plan
Curated OER

Why Doesn't SSA Work?

For Teachers 10th - 11th
Students investigate the relationship between angles and their sides. In this geometry lesson, students prove why SSA does not work as a true angle side relationship theorem.
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Worksheet
Curated OER

Geometry Standardized Test Practice

For Students 10th
In this angles and figures review worksheet, 10th graders solve and complete 39 different multiple choice problems. First, they find the length of a line between two given points. Then, students name the type of transformation and the...
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Worksheet
Curated OER

Object Pronouns with Commands

For Students 10th - 11th
Learners can review object pronouns with commands before completing a brief practice activity. This resource contains practice in the affirmative and negative, and then asks the learner to make the command negative with the object...
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Lesson Plan
Virginia Department of Education

Evaluating and Simplifying Expressions

For Teachers 6th - 9th Standards
Discover how algebra tiles help evaluate expressions. Scholars learn to use algebra tiles to substitute values in for variables and evaluate expressions. The included worksheet contains a set of evaluation problems to assess individuals'...
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Worksheet
Curated OER

Indirect Euclidean Proofs

For Students 10th
In this Euclidean proofs activity, 10th graders solve 10 different problems that include completing indirect Euclidean proofs. First, they write a statement for each of the reasons listed on the sheet of proofs. Then, students solve the...
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Worksheet
Curated OER

Indirect Euclidean Proofs

For Students 7th - 8th
In this indirect Euclidean proof worksheet, students write statements supporting the reasons for a given proof. This one-page worksheet contains ten problems.
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Worksheet
Curated OER

Solving Linear Equations

For Students 9th - 12th Standards
Use this activity for practice or review solving linear equations in one variable. Problems range from multiple-step problems involving parentheses and combining like terms, to word problems, to equations with no solution or infinitely...
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Lesson Plan
Curated OER

Ecology and the Conservation of Natural Resources

For Teachers 2nd - 6th
Learners examine the habits of various organism and evaluate the need for conserving natural resources. They role-play as migrating birds traveling between habitats encountering hazards along the way. They observe animals in a...
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Lesson Plan
Curated OER

Diversity And Adaptations Of Organisms

For Teachers 7th
Seventh graders investigate how organisms respond to environmental stimuli through their behavior. They observe how plants and animals respond to varying amounts of light, water and gravity.