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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.
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Find the Epicenter
Eighth graders visit the Virtual Earthquake Web site and complete activities that demonstrate how geologists locate the epicenters of earthquakes. The site uses actual data from historic earthquakes.
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Heron's Formula
Students use Heron's formula to calculate the area of a triangle. In this geometry lesson, students use three different methods to solve the area of a triangle. They find and construct the incentor and angle bisector of a triangle.
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Secant Line Approximation of the Tangent Line
Students perform operation with secant and tangent lines. For this calculus lesson, students find the derivative and relate it to the slope of a line. They differentiate between secant and tangent as they intersect a circle, using Cabri.
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Triangle Side Lengths and Angles Measures
Students identify missing sides and angles. In this geometry instructional activity, 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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Exploring the Slopes of Parallel and Perpendicular Lines
Students calculate the slope of parallel and perpendicular lines.In this algebra lesson, students differentiate between parallel and perpendicular lines. They graph their lines using the slope of the equation.
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Exploring the Slopes of Parallel and Perpendicular Lines.
Students find the slopes for perpendicular and parallel lines. In this geometry lesson, students differentiate between parallel and perpendicular lines. They use Cabri software to create lines to compare.
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Pythagorean Theorem: Triangles and Their Sides
Young scholars investigate triangles and their relationship to each other. In this geometry lesson, students solve right triangles using the properties of the Pythagorean Theorem. They differentiate between right, acute, straight and...
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Menu Planner
Students plan a menu for a family of four for a day. They estimate the cost of purchasing items on that menu based on a $ 50.00 budget and calculate the actual costs of those items and compare the estimated and actual costs.
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Properties of Special Parallelograms
Young scholars identify properties of trapezoids. In this geometry lesson, students are put into groups and use computer programs to analyze polygons. They drag and move the shapes around as they make predictions.
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What are the Chances: A Game of Chance!
Sixth graders experiment with dice, playing cards, pennies and computer-generated simulations to calculate probability. They use compiled data to make predictions.
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Patterns on Parade
First graders discover that patterns exist in sounds, movement, and objects. In this patterns lesson, 1st graders select two items from a group and produce an alternating pattern.
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Graphs! Graphs! Graphs!
Students practice making charts and graphs from data on spreadsheets. Individually, they create a graph representing the latest information on voter registration. They answer questions and analyze the data to end the lesson.
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Positively Negative?
Middle schoolers practice the addition, subtraction, multiplication, and division of integers. They view a video clip on addition and subtraction of integers. Students observe a Web site that reviews multiplication and division of...
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Identify Shapes and Matching Parts
Students identify real world objects as shapes they have learned. In this 3-D shapes worksheet, students identify shapes such as a cube for a box, a sphere for a globe, and a cylinder for a soup can.
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Inscribed Right Triangles
Students calculate the measurements of the inscribed angles of a triangle. For this geometry lesson, students relate the hypotenuse of a right triangle and the diameter of a circle to each other. They calculate the diameter of a circle...
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Cancer in My Classroom I
Student explore cancer, its causes, and various types. Students research compare/contrast a health cell to a cancer cell. They compare treatments available for childhood cancers.
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Shapes and Colors All Around
Students tour their school in a scavenger hunt to find primary colors and two and three-dimensional shapes. Students take digital pictures of the colors and shapes they find and create a class book of the pictures.
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Favorite Days
Students collect and organize data about themselves. In this data analysis lesson, students discuss their favorite calendar dates and explore ways to display the data.
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Introduction to Law of Sines
Students solve problems using the law of sines. In this sines lesson, students work in groups and individually to solve problems using the law of sines. They identify real life problems that require the use of the law of sines. Real...
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Fraction Puzzle Problems
Fifth graders design a fraction word problem PowerPoint presentation. In small groups they complete a storyboard graphic organizer for their word problem, evaluate another group's word problem, and create a PowerPoint presentation of...
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EXCEL It!
Learners surf the Web gathering information about graphs. The data collected is incorporated into an Excel spreadsheet and graphs of varying nature generated to further enhance student understanding.
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It's All About Scale
Sixth graders investigate scale models of toys. In this scale models of toys lesson, 6th graders bring in toys from home to measure. Students discuss scale and what scale is used with their toys. Students determine the life size...
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Apples and Apple Activities
Students investigate apples. In this reading comprehension lesson, students read a book about apples then compare and contrast, make graphs, distinguish between fact and fiction and work in groups. Students work in groups to search the...