Lesson Plan
Curated OER

Congruence with Robot Gobot

For Teachers 8th - 10th
Students identify the properties of solids and polygons. In this geometry instructional activity, students identify the different measurements of a triangle. They use congruence parts and theorem to prove their answer.
Interactive
Curated OER

Polygons Multiple Choice

For Students 9th - 10th
In this geometry worksheet, students identify the interior and exterior angles using the angle sum theorem. They identify and solve quadrilaterals using properties of quadrilaterals. There are 12 questions with an answer key.
Lesson Plan
Curated OER

The Shadow Knows

For Teachers 8th - 10th
Students pick different objects and measure the shadow they cast. In this geometry lesson, students experiment with shadows using a flashlight and an object to cast a shadow. They measure and differentiate between the shadow and the real...
Lesson Plan
Curated OER

Geometric Shapes at the OK Corral

For Teachers K
Students explore geometry by utilizing computer software. In this shape identification lesson, students define several geometric shapes by the characteristics that classify them. Students draw and cut out geometric shapes using their...
Worksheet
Curated OER

Calculate the Area of Compound Figures

For Students 6th - 8th
In this geometry skills worksheet, learners respond to 4 questions that require them to calculate the area of compound figures.
Lesson Plan
Curated OER

Math and Circumference

For Teachers 6th
Sixth graders explore geometry by utilizing mathematical formulas. In this circumference lesson, 6th graders identify the difference between diameter, circumference and radius in a circle. Students review the formulas for finding...
Lesson Plan
Alabama Learning Exchange

It's Around There Somewhere! Perimeter, and Circumference

For Teachers 6th - 8th Standards
Explore the concept of building equations for perimeter and circumference. Learners use rulers to measure the perimeter of half a sheet of paper.  Then fold the sheet of paper numerous times, each time measuring perimeter. ...
Lesson Plan
Curated OER

Investigation: Area of Geometric Shapes

For Teachers 4th
Fourth graders explore geometry by utilizing pattern blocks. In this pattern activity, 4th graders analyze two separate pattern block shapes and discuss which one is bigger and smaller. Students collaborate in small groups to create...
Lesson Plan
Curated OER

Space Science:Wherever You Go, There You Are

For Teachers 4th - 8th
Learners explore navigation principles by observing, measuring, and interpreting data to determine locations. Using a compass, compass rose, and a transit, they plot courses and discover the workings of the Global Positioning System...
Worksheet
Curated OER

Sunshine Math- 1 Venus, XV

For Students 1st - 2nd
For this problem solving worksheet, students complete 9 story problems that include geometry, measurement, input and output, pictographs, time, addition and weights.
Lesson Plan
Curated OER

Measuring the Earth (Eratoshenes' method)

For Teachers 6th
Sixth graders engage in problem solving, communicating, reasoning, and connecting to represent and solve problems, using geometric models.
Lesson Plan
Curated OER

Algebra/Geometry Institute Summer 2009 - Triangles and the Pythagorean Theorem

For Teachers 7th
Seventh graders find the perimeter and area of triangles.  In this finding the perimeter and area of triangles lesson, 7th graders find the perimeter and area of triangles given two sides.  Students find the missing side by...
Worksheet
Curated OER

Geometry: Calculating the Area of a Circle

For Students 7th - 9th
In this area worksheet, students use the perimeter or radius to determine the area of a circle. This one-page worksheet contains 8 problems. This worksheet may be produced in printed form. Answers may be viewed on-line.
Worksheet
Curated OER

The Geometry of Solids

For Students 8th - 10th
In this solids worksheet, students compute the volume of prisms, cylinders, pyramids, spheres and cones.  This seven-page worksheet contains approximately 68 problems. 
Worksheet
Helping with Math

Geometry: Areas of Triangles

For Students 7th - 9th Standards
For this areas of triangles instructional activity, students observe given polygons. They determine the area of triangles, rectangles and compound figures. This one-page instructional activity contains 5 multi-step problems. This...
Worksheet
Curated OER

Geometry Concepts and Applications

For Students 10th
In this concepts and applications review activity, 10th graders solve and complete 40 various types of multiple choice problems. First, they write the equation of a vertical line passing through a point. Then, students find the...
Lesson Plan
Curated OER

Volume of Rectangular Prisms: Algebra/Geometry Institute Summer 2009

For Teachers 9th - 10th
Students find the volume of rectangular prisms.  In this volume lesson, students use a formula to find the volume of rectangular prisms.  They discuss the definition of volume and draw rectangular prisms.  Students...
Lesson Plan
Curated OER

Kindergarten: Geometry in Our World (Centers)

For Teachers K
Students identify attributes in real-life objects and models of solids and connect these attributes to characteristics of shapes such as circles, triangles, squares, and other rectangles. They discuss the ability of the object to roll,...
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...
Worksheet
Curated OER

Geometry: Calculating Perimeters

For Students 9th - 12th
In this perimeter worksheet, students find the perimeter of 3 polygons. Students find the perimeter of irregular polygons given various side lengths.
Worksheet
Curated OER

Standardized Geometry Test Practice

For Students 10th
In this angles, lines and figures review worksheet, 10th graders solve and complete 33 standardized multiple choice problems. First, they use the Segment Addition Postulate to solve for a variable given an equation for each line. Then,...
Interactive
CK-12 Foundation

Angle-Side-Angle Triangles: Caution Tape

For Students 10th - 12th Standards
Don't lose your marbles. Scholars use an interactive to create a triangle that closes off a portion of a sidewalk with loose marbles. The Law of Sines helps them find the side measures of such a triangle.
Lesson Plan
Curated OER

Measuring with My Body

For Teachers 3rd
Third graders get into groups of two. Next, give each student a piece of butcher paper that is long enough for them to trace their entire body. One person lies down while their partner traces the outline of their body. Upon completion,...
Lesson Plan
Curated OER

Measuring The Earth

For Teachers 9th - 12th
Learners use their geometry and trigonometry skills to determine the distance between their school and another school.