Curated OER
It's a Ball, It's a Sphere ... No, It's a Dodecahedron
Third graders construct a dodecahedron that displays facts about two and three-dimensional figures. They use a pattern to construct a dodecahedron after writing facts about geometry onto each of the figure's twelve faces.
Curated OER
Measurement of a Central Angle
Students calculate the measurement of a central angle. In this geometry activity, students identify properties of circles. They use Cabri software to create and analyze graphs.
Curated OER
Arc Measurement Based on The Measurement of a Central Angle
Students define keywords that are important to solve problems. In this geometry lesson, students find the arc length and angle of a circle. They convert between radians and degrees.
Curated OER
Exploring Chords: Products of Chord Segments
Students identify the properties of chords. In this geometry lesson, students multiply chord segments to find the solution to their problem. They construct two chords that cross on a circles.
PBS
Using Symmetry to Create Corporate Logos
Young mathematicians investigate the use of symmetry in graphic design. After first learning about reflection, translational, and rotational symmetry, children use this new knowledge to identify symmetry in letters of the...
Curated OER
A Perpendicular Pilgrimage
Ninth graders design a safe passage through a 2-D obstacle. In this geometric math lesson, 9th graders engage in a hands on activity to better understand the concept of geometric and algebraic perpendicularity. Students will work in...
Curated OER
Spin Your Turbines
Students relate electrical power and how it works to math. In this geometry lesson, students analyze how a hydroelectric plant works and calculate the amount of electricity that is produced by a typical generator. This lesson uses...
Curated OER
Don't Burst My Bubble
Students practice using measuring techniques by examining bubbles. In this geometry lesson, students utilize mathematic formulas to discover the circumference and diameter of soap bubbles they blow. Students practice creating...
Curated OER
Anticipation/Reaction Guides and Discussion Groups
Seventh graders study geometric shapes around the classroom. In this geometry lesson plan, 7th graders discuss their answers in groups to the Anticipation/Reaction guide handout. Students complete the reaction side of the guide and...
Curated OER
Graphing Dairy Production Statistics
Students collect data about dairy production. In this geometry instructional activity, students formulate and model problem solving. They collect data and plot it on a graph.
Curated OER
Light Beam
Students measure and convert between units. In this geometry lesson, students investigate through measurements of distances. They relate the properties of circle to solving problems with radius, diameter and area.
Curated OER
Platonic Solids
Students identify different types of polygons. In this geometry lesson, students differentiate between convex and regular shapes. they identify the names of two and three-dimensional objects.
Curated OER
The Shadow Knows
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...
Curated OER
The UPS Experiment
Young scholars calculate the speed using metric measurements. In this geometry lesson, students calculate speed, distance and velocity using metric measurements. They gain inquiry and problem solving skills in this assignment.
Curated OER
Tricky Traps
Students create identify properties of trapezoids. In this geometry lesson, students calculate the area of given trapezoids and review the area formula for parallelograms. They draw a correlation between the area of a trapezoid and that...
Curated OER
Pushing Pivots
Students calculate the area and diameter length of a circle. In this geometry lesson, students investigate the use of pivots as they review parts of a circle. They create a circle using cardboard and label all the parts.
Curated OER
Robot Cartography
Students identify points plotted on the coordinate plane. In this geometry lesson, students learn to read a map using concepts of a coordinate plane grid. They find the path given a map to tell them where to go.
Curated OER
Cut It Out!
Students calculate the surface area of polygons. In this geometry lesson, students use spacial reasoning to find the answer to their problem. They analyze solids and create formulas to estimate the measurements of the area.
Curated OER
Troublesome Towers
Students observe solids and identify parts that make up the surface area. In this geometry lesson, students calculate the surface are of solids and cones. They find polygons and solids in the real world.
Curated OER
Math and Measurement
Learners use the correct tool to measure distances. In this geometry instructional activity, students use an odometer and ruler correctly as they study maps. They describe how far way something is.
Curated OER
Design Your Dream Stadium
Students raise their design awareness about construction considerations for large public facilities including safety, accessibility, funding, construction materials, and space, use geometry and other mathematical skills to calculate size...
Curated OER
Run for the Cup!
Students gather information about the Melbourne Cup horse race in Australia. Then they study the geometry and physics behind the design of a racetrack. Students also work in small groups to problem solve and design their own board games...
West Contra Costa Unified School District
Dilations Using Right Triangles
Don't argue with a triangle that has a 90-degree angle. It's always right. Scholars first use right triangles to help draw dilations of points. They continue the lesson plan by applying this skill to draw dilations of polygons.
West Contra Costa Unified School District
Investigating Special Right Triangles
Scholars first investigate relationships in the side lengths of 30°-60°-90° triangles and 45°-45°-90° triangles. This knowledge then helps them solve problems later in the lesson plan about special right triangles.
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