Teach Engineering
Strength of Materials
Pupils examine a stress-strain diagram that compares the advantages and disadvantages of the two common bridge building materials, concrete and steel. The also consider the factors that influence the materials builders choose for their...
University of Wisconsin
Sizing a Rain Garden
Most appropriate if you are applying the entire unit to build a rain garden at your school, this installment involves calculating the area that will drain into it. Your garden planners will need data from previous lessons, so this one...
PBS
Blow the Roof Off!
Blow the minds of young scientists with this collection of inquiry-based investigations. Based on a series of eight videos, these "hands-on, minds-on" science lessons engage young learners in exploring a wide range of topics...
Indiana Department of Education
The Represented World: Communication—Packaging
Challenge your classes to design and market a new product. Collaborative groups use geometry skills to create packaging for their products. Finally, they plan a marketing strategy to present to a marketing specialist.
Curated OER
Inscribed Right Triangles
Students calculate the measurements of the inscribed angles of a triangle. In this geometry activity, students relate the hypotenuse of a right triangle and the diameter of a circle to each other. They calculate the diameter of a circle...
Curated OER
Investigating a Point on an ANgles Bisector
Students investigate points and angle bisectors. In this geometry lesson, students define angles, bisectors and perpendicular bisectors. They analyze angles and bisectors using Cabri software.
Curated OER
Solving Equations with Variables on Both Sides
In this solving equations worksheet, students solve 15 equations with variables on both sides of the equal sign. Students are encouraged to check all solutions.
Curated OER
Troublesome Towers
Students observe solids and identify parts that make up the surface area. For this geometry lesson, students calculate the surface are of solids and cones. They find polygons and solids in the real world.
Curated OER
Investigating Area and Perimeter of Polygons.
Student sinvestigate the area and perimeter of polygons. They differentiate between similar and congruent polygons.. They identify the ratio and proportions of the sides and angles of polygons.
Curated OER
Side Splitter Triangles
Students investigate the side splitter theorem. In this geometry instructional activity, students estimate and solve problems dealing with ratios and proportions. They identify angles created by lines that are parallel.
Curated OER
Tessellation Trial and Error
In this interactive instructional activity, students review attributes of equilateral polygons. They are introduced to the concept of a tessellation. Using protractors and pre-cut shapes, students arrange a variety of tiles to create...
Curated OER
Shape and Space: Transformations
Students explore transformations. In this mathematical transformations lesson, students define quadrilaterals, convert centimeters to meters, and complete a transformations worksheet.
Curated OER
Can You Canula?
Students calculate the circumference of a circle. In this geometry lesson, students measure the diameter of a circle using micrometers or calipers. They investigate the relationship of the diameter to that of the value of Pi.
Curated OER
Finding the Area of a Parallelogram with Translations
Pupils calculate the area of a parallelogram. In this geometry lesson, students perform translation using a coordinate plane and coordinate pairs. They perform translation on other polygons.
Curated OER
Lesson Plan 2: Linear Inequalities
Students investigate linear inequalities and the associated symbols. After a teacher demonstration, they translate given phrases into symbols. Students solve and graph solutions to linear inequalities. Using newspapers, they locate...
Curated OER
Algebra/Geometry Institute Summer 2009
Students investigate linear equations through models. In this algebra lesson plan, students investigate solving one and two step equations. Review solving a basic equation before starting this assignment.
Curated OER
Integer Algebraic Addition
Students use algebra tiles to solve linear equations with integer solutions. In this algebra lesson plan, students use the additive inverse and the zero pair concept.
Curated OER
Orthocenter Of a Triangle
Students find the orthocenter of a triangle. In this geometry lesson, students identify where the altitudes meet in a triangle. They use Cabri software to explore acute, obtuse and right triangles.
Curated OER
Compound Locus
Pupils investigate circles and compound locus. In this geometry lesson, students identify the distance from a point to a line. They use Cabri software to create lines and circles.
Curated OER
Areas of Polygons
Pupils calculate the are of regular polygons. In this geometry lesson, students create polygons on the computer and move it around to create different shapes. They explore the area of different polygons and how they inter-relate.
Curated OER
Exploring Angle/Pair Relationships
Students find missing angles and sides of triangles. In this geometry lesson, students create intersecting lines to measure angles. They use Cabri Software to create virtual angles.
Curated OER
Exploring Geometric Mean
Students solve problems using geometric means. In this geometry lesson, students create altitudes in right triangles. They use Cabri software to move the triangle around and observe different sides and angles.
Curated OER
Exploring Geometric Mean
Student identify the solution using geometric mean. In this geometry lesson, students create right triangles where the altitude of the triangle is the side containing the right angle. They modify shapes using Cabri software and observe...
Curated OER
The Trappings of Trapezoids
Students define trapezoids and their shapes. In this geometry lesson plan, students calculate the area of a trapezoid and a parallelogram. They use Cabri software to make investigations.
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