Lesson Plan
Curated OER

Plain Figures and Measuring Figures

For Teachers 10th - 12th
Students investigate basic geometric concepts. In this geometry lesson, students explore solids through measuring and modeling. This assignment models the importance of understanding concrete objects in geometry.      
Lesson Plan
Curated OER

Angles And Triangles

For Teachers 7th
Seventh graders participate in a lesson that is focused upon the concepts of classifying different angles and triangles. They practice classifying triangles according to its kind that includes types of angles, congruence, and vertices....
Worksheet
Curated OER

Wave Terms and Concepts

For Students 9th - Higher Ed
In this waves activity, students define 23 vocabulary words associated with the different types of waves and how waves are measured. Students complete 23 matching terms with definitions and draw the superposition of two waves shown.
Lesson Plan
Curated OER

Graphing Inequalities

For Teachers 7th - 12th
Learners graph linear equations and then find the person in class whose linear equation graph is perpendicular to theirs. For this graphing inequalities lesson plan, students graph their perpendicular slopes and then once their find...
Lesson Plan
Curated OER

Toothpick Art

For Teachers K - 2nd
Students review primary colors and practice making straight lines. In this visual arts lesson, students paint simple shapes as large as a toothpick, using specific primary colors. During the construction of the shapes students are...
Lesson Plan
Curated OER

Let the Light Shine Through!

For Teachers 6th - 7th
Students display knowledge of line of symmetry by designing a geometric stained glass window pattern.
Lesson Plan
Curated OER

Plain Figures And Measuring Figures

For Teachers 7th
Seventh graders investigate the mathematical concept of a sector. They apply the concept to an example problem and then move into a more complex application. They find the area of the side of a cone. This is done as students calculate...
Lesson Plan
Curated OER

Individual Sundial (Cloud/Rain Activity)

For Teachers 4th - 5th
Students make a simple sundial to examine the changes in shadows over time. In this sundial and shadow lesson, students make a simple sundial out of a manila folder and pencil. They observe how shadows change over time, and relate it to...
Lesson Plan
Curated OER

Shape Up

For Teachers 6th - 8th
Students explore differents types of triangles and quadriaterals. For this polygon lesson, students  model identify and compare two and three dimensional geometric figures. Students create tangrams and discover the difference...
Worksheet
Curated OER

Sentence Completion 8

For Students 7th - 9th
Review context clues with your young readers using this helpful resource. Eight questions contain a missing word that pupils choose out of five options. The sentences provide ample context clues, making the choice more about test-taking...
Lesson Plan
Curated OER

Geometry Flip Book

For Teachers 3rd - 5th
Students investigate the concepts of geometry that can be grouped into a flip book that can be used for teaching and review purposes. They define the differences between two and three dimensional figures. Also polygons are reviewed and...
Lesson Plan
Curated OER

Mr. Lincoln's Hat

For Teachers K - 5th
Bring out the inner artist with this Abraham Lincoln lesson plan. Elementary students work on a home project creating a hat similar to Abraham Lincoln's hat. They will use geometry and measurement to create the scale of the hat, then...
Lesson Plan
Curated OER

Finding the Area of a Parallelogram with Translations

For Teachers 8th - 10th
Students calculate the area of a parallelogram. In this geometry activity, students perform translation using a coordinate plane and coordinate pairs. They perform translation on other polygons.
Lesson Plan
Curated OER

Finding the Area of a Parallelogram with Translations

For Teachers 8th - 10th
Students calculate the area of parallelograms. In this geometry lesson, students identify properties of parallelograms and use to to solve problems. They create polygons using Cabri software.
Lesson Plan
Curated OER

Side Splitter Triangles

For Teachers 8th - 11th
Learners investigate the side splitter theorem. In this geometry lesson, students estimate and solve problems dealing with ratios and proportions. They identify angles created by lines that are parallel.
Lesson Plan
Curated OER

Time To Measure

For Teachers 3rd
Third graders measure time and length. Through the use of video and technology, they explore key elements of measurement, such as units and conversion between units. They explore alternate units of measurement and apply measurement to...
Lesson Plan
Curated OER

Reflections

For Teachers 5th
Fifth graders create a reflection of a poygon using a Mira. They discover that a line connecting a vertiex of a polygon and the corresponding vertex of its reflection is perpendicular to the line of reflection. Students create a glide...
Activity
Curated OER

Life in a Geometrical Town

For Teachers 5th - 6th
In this geometry worksheet, students create a map that uses various geometrical concepts. The final project is the creation of a "geometrical town." Rubric for grading is included.
Lesson Plan
Curated OER

Polygons All Around Us!

For Teachers 9th - 12th
Young scholars explore the concept of polygon properties. In this polygon properties lesson, students draw polygons with different numbers of sides such as pentagons, octagons, hexagons, etc. Young scholars identify different geometric...
Activity
Texas Instruments

Texas Instruments: Parallel or Perpendicular What's Your Inclination?

For Teachers 9th - 10th Standards
This activity has students discover the relationship between parallel and perpendicular lines and their slopes. After constructing these objects using CABRI Geometry II for the TI-89, slopes are measured. [Requires Adobe Reader.]
eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 5.3 Parallel and Perpendicular Line Constructions

For Students 9th - 10th Standards
Understand the step-by-step processes used to create accurate geometric figures.
Unit Plan
Oswego City School District

Regents Exam Prep Center: Geometric Constructions

For Students 9th - 10th Standards
Learn all about the basic geometric constructions in this test prep lesson. You will explore line segments and points, and understand key terms like the terms parallel and perpendicular. Construction activities and interactive online...
Activity
Math Is Fun

Math Is Fun: Using a Ruler and Drafting Triangle

For Students 3rd - 8th Standards
Students learn how to construct parallel and perpendicular lines. The resource consists of video demonstrations.
Activity
Texas Instruments

Texas Instruments: Cabri Geometry Tour

For Teachers 9th - 10th Standards
In this activity, students use the Cabri software to mark points, draw lines, construct parallel and perpendicular lines, angles, bisectors, and triangles. They learn how to use the tool to measure angles.