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How Safe Is Your Backyard?
Seventh graders investigate the safety of soil and water locally and communicate via the Internet with students in different locales sharing information. They research the Internet using its multimedia capabilities and collate the data...
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Constructing Triangles
Students construct triangles. In this geometry instructional activity, students create equilateral triangles. They also construct triangles where the sides are different. They use the lab to create and move shapes around with the Cabri...
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Quadrilateral within Quadrilaterals
Students investigate the properties of quadrilaterals. In this geometry instructional activity, students solve problems dealing with construction and designs. They work with quadrilaterals, midpoints and parallelograms.
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Orthographic Drawings
Students investigate the creation of three dimensional drawings. In this geometry lesson, students analyze and complete orthographic drawings. They Cabri software to manipulate and move the drawings around.
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Orthographic Drawing
Students investigate orthographic drawings. In this geometry lesson, students identify properties of three dimensional drawings in space. They solve problems using volume and area formulas.
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Sorting Quadrilaterals
Tenth graders investigate the geometric concept of quadrilaterals. They are given a set of shapes and asked to sort the quadrilaterals from the others. Then working in pairs they discuss the characteristics and write down the description...
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Rocks
Young scholars use their five senses to experience different types of rocks. In groups, they compare and contrast the information they collected. They observe rocks in their local community and describe their uses to the class.
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Constructing Perpendiculars
Students construct perpendicular lines. In this geometry lesson, students use a compass and straight edge to do construction. They start from a point to a line.
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Dividing Line Segments into n Congruent Parts
Pupils identify lines, and line segments. In this geometry lesson, students divide line segments into equal congruent parts. They complete a laboratory activity dealing with lines and segments.
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Interior and Exterior Angles of Polygons
Young scholars identify interior and exterior angles of polygons. In this geometry lesson, students add interior and exterior angles of polygons. They use angle theorems to solve the problems.
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Heron's Formula
Students use Heron's formula to calculate the area of a triangle. In this geometry instructional activity, students use three different methods to solve the area of a triangle. They find and construct the incentor and angle bisector...
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Special Right Triangles
Students identify different types of special right triangles. In this geometry lesson, students differentiate between right triangles and isosceles triangles. they construct the triangles using geometry software and make conjectures...
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Composition of Reflections
Students perform reflections and translations of polygons. In this geometry lesson, students perform reflection in two parallel lines. They use Cabri to observe the transformation and rotations of each shape.
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Triangle Exterior Angles Theorem
Students identify the measure of missing exterior angles. In this geometry lesson,students define and apply the exterior angle theorem to solve problems. They use Cabri software to create different angles and make investigations.
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Triangle Side Lengths and Angles Measures
Students identify missing sides and angles. In this geometry lesson, students use triangular theorems to identify the missing sides. They use the Pythagorean Theorem to find the different ratios of each side.
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Median of a Trapezoid
Learners find the median of trapezoids and other polygons. In this geometry lesson, students identify important properties of trapezoids. They create trapezoids and polygons using Cabri software.
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Tessellations
Students create tessellations. In this geometry instructional activity, students use polygons to create different patterns by rotation. They identify the reasons for polygons to create the type of tessellation it does.
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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.
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Balancing the Scales: Understanding Ratios
Students are introduced to the concept of ratios. In groups, they convert sets of numbers into a ratio. After practicing, they use the ratios and proportions to solve story problems. They also calculate map distances and discover map...
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Grand Grocery Graphs
Students experience creating their own graphs on graph paper and the computer program "Graph Club." They approach this task by utilizing food as their primary source for the activities. In addition, they interact with their peers as they...
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The Schoolyard Safari
Students engage in a instructional activity to find out more information about insects. They collect and observe different insects found on school property. They research the insects once they have been classified. Also a video is used...
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Building Storm Shelters
Sixth graders explore area and perimeter. In this online interactive area and perimeter instructional activity, 6th graders investigate why the perimeter of rectangles can vary considerably even when the area is held constant. Students...
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Which Came First-Democracy or Growth?
Students investigate economic growth and standard of living. In this economics lesson, students investigate the GDP per capita and how it affects the economy. Students differentiate nominal and real GDP.
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Force and Gliders
Students explore physics by creating data graphs in class. In this flight properties lesson, students read the book Flying Machine and identify the force, resistance and construction necessary to keep a glider in the air. Students...