Lesson Planet Article
Curated OER

Using Optical Illusion Brain Teasers Add a Twist to Math and Science

For Teachers 6th - 8th
Optical illusion activities can provide a motivating way for students to explore math and science concepts.
Lesson Plan
Curated OER

Geometry Institute Lesson

For Teachers 6th - 8th
Students practice geometry skills. In this geometry instructional activity, students find the surface area of cubes and prisms, identify shapes on solids, and distinguish between 2-dimensional objects and solids.
Worksheet
Curated OER

Geometry Review

For Students 10th
In this geometry worksheet, 10th graders examine and evaluate their understanding of many of the basic concepts of geometry. The six page worksheet contains thirty-five questions. Answers are not provided. 
Worksheet
Curated OER

Multivariable Calculus: Euclidean Geometry

For Students Higher Ed
In this Euclidean geometry learning exercise, students determine if planes are parallel or perpendicular to each other. They identify the vector position. This two-page learning exercise contains definitions, examples and explanations...
Worksheet
Curated OER

Geometry

For Students 1st - 3rd
In this open and closed curves geometry learning exercise, students distinguish between the 2 types of curves as they solve 6 problems
Worksheet
Curated OER

Geometry Characteristics

For Students 3rd - 5th
In this geometry learning exercise, students select characteristics from a word bank that make sets of shapes fall into the same category. A reference web site for additional activities is given.
Worksheet
Curated OER

Geometry-Symmetry

For Students 2nd - 4th
In this geometry-symmetry worksheet, students determine which shapes in sets are symmetrical/not symmetrical. A reference website is given for additional resources.
Worksheet
Curated OER

Proofs in Coordinate Geometry

For Students 10th - 11th
In this coordinate geometry worksheet, learners identify the lengths of a quadrilateral and find the slope of a line. They use proofs to identify the characteristics of given quadrilaterals. This one-page worksheet contains ten problems.
Worksheet
Curated OER

Properties of Geometry

For Students 10th
In this properties of geometry learning exercise, 10th graders solve and complete 12 different problems that include various theorems. First, they draw a figure that illustrates the SAS inequality property. Then, students prove that two...
Worksheet
Curated OER

Geometry Proofs

For Students 10th
In this geometry proofs worksheet, 10th graders solve and complete 6 different problems that include various proofs. First, they prove a triangle has equivalent angles as given. Then, students prove two angles supplementary as described.
Worksheet
Curated OER

Chapter 4.5 Geometry Practice Problems

For Students 10th - 11th
In this geometry practice problems learning exercise, students write geometric proofs to prove the validity of given circumstances. Students prove parallel lines, perpendicular lines, and similar angles. This four-page learning exercise...
Worksheet
Curated OER

Proofs Chapter 2: Geometry

For Students 10th - 11th
In this geometry worksheet, students look at given pictures and prove congruent lines and angles. This three-page worksheet contains nine multi-step problems.
Lesson Plan
Curated OER

Geometry

For Teachers 1st - 2nd
In this geometry practice worksheet, students read the hints regarding hexagons, pentagons, and octagons. Students then examine 3 groups of shapes and identify them as hexagons, pentagons, or octagons.
Lesson Plan
Curated OER

Geometry: Identify Shapes

For Teachers 2nd - 3rd
In this geometry worksheet, students identify a set of 6 shapes, shown in a 2 column graphic organizer; students write the name of the shape in the left column, 6 shapes total.
Worksheet
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Geometry - Congruent Figures

For Students 1st - 3rd
In this geometry worksheet, students read the definition of congruent figures. They match the figures shown at the top of the page with the one that is congruent in a box at the bottom of the page.
Lesson Plan
Curated OER

Geometry of Triangles - Week 6

For Teachers 12th - Higher Ed
In this geometry of triangles worksheet, students find the length of sides, are, and angle measurement of inscribed triangles, pentagons, and midpoint of a line. This two-page worksheet contains seven problems.
Interactive
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Basic Geometry Vocabulary

For Students 10th
In this geometry activity, 10th graders match basic vocabulary words relating to angles, circles, quadrilaterals, and transformations in a drag and drop game format.  The one page interactive activity contains twenty matching...
Interactive
Curated OER

Three Dimensional Geometry Crossword

For Students 9th - 10th
In this three dimensional geometry crossword, learners explore terminology in fifteen crossword problems.  A word bank and solutions are provided.
PPT
Curated OER

Twenty Questions: Fourth Grade Math Terms

For Teachers 4th
Questions related to math vocabulary from a large variety of categories for 4th graders are displayed throughout this Jeopardy game. Concepts covered include angles, shapes, computation terms, statistics, and place value.
Lesson Plan
Curated OER

Connections Involving Geometry And Inequalities

For Teachers 9th - Higher Ed
In this math worksheet, students investigate inequalities using problems like: If x and y are randomly determined so that 1 < x < 3 and 4 < y < 7, then what is the probability that | x – y |< 4?
Lesson Plan
Curated OER

Algebra/Geometry Institute 2007

For Teachers 5th
Fifth graders practice calculating probability using statistics.  In this math statistics lesson, 5th graders discover the meanings of the terms unlikely, likely, eventually, and chance, when asked to answer questions about the...
Lesson Plan
Shodor Education Foundation

Cross Sections

For Teachers 7th - 12th Standards
Use this activity on cross-sections of three-dimensional shapes in your math class to work on algebra or geometry Common Core standards. The lesson includes a list of relevent terminology, and a step-by-step process to illustrate the...
Lesson Plan
EngageNY

Parallel and Perpendicular Lines

For Students 9th - 12th Standards
Use what you know about parallel and perpendicular lines to write equations! Learners take an equation of a line and write an equation of a line that is parallel or perpendicular using slope criteria. They then solve problems to...
Lesson Plan
EngageNY

Between-Figure and Within-Figure Ratios

For Teachers 9th - 10th Standards
Tie the unit together and see concepts click in your young mathematicians' minds. Scholars apply the properties of similar triangles to find heights of objects. They concentrate on the proportions built with known measures and solve to...

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