Lesson Plan
Curated OER

Congruent Polygons: Copying Stretchy Shapes

For Teachers 3rd
Third graders investigate congruent polygons through dance. In this congruency lesson, 3rd graders do the "brain dance" as a warm up. They review polygon names by singing "The Polygon Chant," before mirroring congruent shapes with a...
Unit Plan
Curated OER

Connecting Algebra and Geometry Through Coordinates

For Teachers 9th - 10th Standards
This unit on connecting algebra and geometry covers a number of topics including worksheets on the distance formula, finding the perimeter and area of polynomials, the slope formula, parallel and perpendicular lines, parallelograms,...
Lesson Plan
Curated OER

How Big Is a Blue?

For Teachers K - 3rd
Learners sort and compare/contrast the lengths of various whales. They sort pictures of whales in order of smallest to largest, and given a rope marked with the lengths of the whales, they compare the actual lengths of the whales.
Lesson Plan
Improving Measurement and Geometry in Elementary Schools

Rep Tiles

For Teachers 4th - 5th Standards
In addition to the catchy title, this lesson plan provides upper graders an opportunity to more closely scrutinize the attributes of plane figures. In particular, they focus on the similarity of different shapes. Both whole-class and...
Worksheet
K12 Reader

Character Development in "The Tell-Tale Heart"

For Students 6th - 9th Standards
Yes. Make up your mind to use this reading comprehension resource with your readers. You need not be nervous, not even a little nervous. An answer sheet is provided.
Worksheet
Curated OER

Circles Terminology Multiple Choice

For Students 9th - 12th
In this circles worksheet, students solve 10 multiple choice problems. Students answer questions about diameter and chord relationships, tangent lines to a circle, circumference, the Pi relationship, etc.
Worksheet
Curated OER

New York State Testing Program: Mathematics Test Book 2

For Students 5th - 7th
In this mathematics test book, students answer problems dealing with topics covered during the year. They solve problems dealing with percent, probability, properties, and interpreting graphs. This sixteen page learning exercise contains...
Worksheet
Curated OER

New York State Testing Program Practice

For Students 8th
In  this standardized test preparation learning exercise, 8th graders solve several varying problems.  This twelve page test preparation learning exercise asks students to show their work and explain how they arrived at their...
Lesson Plan
Curated OER

Where's My Dot?

For Teachers K
Students explore the five basic elements of Monart, dot, curved line, straightline, and angle line to create a book about their home address. The concept of "big" is explored in this lesson plan.
Lesson Plan
Curated OER

I Spy Shapes

For Teachers K - 2nd
Students play a game in which they name geometric shapes. In this geometric shape lesson, students ask "yes and no" questions to determine which shape one of their classmates has chosen. They ask questions that lead them to the name of...
Lesson Plan
Curated OER

Triangles Introduction

For Teachers K - 3rd
Students explore geometry by drawing various shapes in class. In this triangle characteristics lesson, students identify the attributes that classify a shape as a triangle and practice using their bodies to create triangles in class....
Lesson Plan
Curated OER

Perpendicular Lines

For Teachers 9th - 10th
Students differentiate between parallel and perpendicular lines. In this geometry lesson, students identify the different angles created by perpendicular lines and parallel lines. They name the angles that are form when parallel lines...
Lesson Plan
Curated OER

See What You Can Find

For Teachers 3rd
Third graders search for and locate examples of acute, right, straight and obtuse angles in the classroom. They record their findings by writing the exact location of each angle found and organize them into angle categories.
Lesson Plan
Curated OER

Introduce Vocabulary: Pinkalicious (Kann)

For Teachers K - 3rd
Although the title of Elizabeth Kann's story Pinkalicious isn't a real word, the book is an excellent way to explore some new vocabulary in context: acute, mushy, rare, steady, and surrounded. Find the...
Worksheet
2
2
K12 Reader

Shapes on a Plane

For Students 2nd - 3rd Standards
Geometric shapes are the focus of a comprehension exercise that asks readers to examine a short passage about planes, circles, triangles, and rectangles, and then to respond to a series of questions about the article.
Worksheet
Curated OER

Triangles

For Students 4th - 7th Standards
Why are there so many different types of triangles? Be that as it may, beginning geometers need to understand the differences between equilateral, isosceles, scalene, and right triangles, and they get a visual approach with this...
Lesson Plan
Curated OER

Indirect Proof and Inequalities in one Triangle

For Teachers 10th
In this geometry worksheet, 10th graders complete an indirect proof and order the sides or angles of a triangle. Also, students determine if a triangle can have sides with the given lengths. The two page worksheet contains twelve...
Worksheet
Curated OER

Construct, Bisect, Duplicate: Geometry Practice with Compass and Straight Edge

For Students 9th - 12th
Geometers employ a straight edge and compass to duplicate and bisect segments and angles, construct perpendiculars, parallel lines, figures, and circles with points of concurrency. Ample practice with 65 questions across 8 worksheets. No...
Worksheet
Curated OER

Informal Geometry

For Students 8th - 12th
Middle and high schoolers solve and complete 29 various types of problems. First, they match each name with its correct formula. Then, students find the length of the missing side and the distance between the two points given. In...
Assessment
EngageNY

Algebra II Module 2: Mid-Module Assessment

For Students 10th - 12th Standards
Time for classes to show what they've learned. Use several tasks to assess understanding of the trigonometric functions, unit circle, radians, and basic trigonometric identities.
Lesson Plan
Curated OER

Point Comparisons

For Teachers 7th - 9th Standards
Young geometers investigate two-dimensional figures using coordinate grids. They identify polygons and draw examples of their reflection, rotation, and translation on a coordinate grid. And they complete a worksheet practicing examples...
Lesson Plan
Alabama Learning Exchange

The Water Cycle

For Teachers 3rd - 5th Standards
Learners identify the stages of the water cycle. They listen to the book "Magic School Bus: Wet All Over," examine the Build Your Own Water Cycle website, predict and measure the amount of water in a jar for a week, and read a short play...
Lesson Plan
Curated OER

Mirror, Mirror

For Teachers 5th - 6th
Geometry learners use hinged mirrors to discover that the regular polygons are composed of triangles tessellating around a center point. They sketch triangles on paper models of the regular polygons having 3 to 10 sides and compute the...
PPT
Jefferson Lab

Optics: Mirrors and Lenses

For Students 9th - 12th
Did you see that or did I imagine it? Optical illusions are often created with mirrors and lenses, and here is a presentation that covers many different types of mirrors and lenses and how they work. Flat, concave, and convex mirrors, as...