Curated OER
Plate Tectonics: An "Eggs"periment
Students investigate plate tectonics by observing a cracked egg shell. In this Earth science lesson, students draw borders of continents on an egg shell, only to watch it crack in a glass. Students record the breakup of the "Earth" and...
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Time and Cycles - Dendrochronology
Students investigate the lives of trees by examining ring cycles. In this plant life lesson, students identify the field of study known as dendrochronology and discover its history. Students investigate a simulated tree ring and...
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Decimals: checkbook and money
In this decimal worksheet, students complete problems having to do with a checkbook, money, the cost of items, and more, with numbers containing decimals. Students complete 3 problems.
Curated OER
Identifying Triangles
Sixth graders identify and define a variety of triangles. In this identification of triangles lesson, 6th graders draw examples of each triangle on a whiteboard, then complete a worksheet.
Curated OER
Proving Lines Parallel Multiple Choice
In this geometry worksheet, learners identify parallel lines, examine and interpret diagrams, and find the value of corresponding angles and lines. This one-page worksheet contains 6 multiple-choice problems. Answers are provided on...
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Volume
In this geometry learning exercise, 10th graders solve problems that involve area of a rectangular prism and lateral area of a pyramid. The one page interactive learning exercise contains five problems. Answers are not provided.
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Hexagon Island
Young scholars identify different polygons. In this geometry instructional activity, students name polygons using the number of sides. They calculate distance and slopes using the correct formula.
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Ceva’s Theorem
Students prove and use Ceva's Theorem to solve problems. In this geometry lesson plan, students analyze polygons for patterns and calculate the area of each shape. They relate polygons to the real world.
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Finite Geometry
Students solve for the area and perimeter of polygons. In this geometry lesson, students identify repeated patterns and create formula to solve problems. They make conjectures and prove hypotheses.
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Pick's Theorem
Students investigate Pick's theorem by completing a lab. In this geometry lesson plan, students construct polygons using cabri software. They calculate the area of polygons and identify the vertices of each shape.
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Triangle Side Lengths and Angles Measures
Learners 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
Students find the median of trapezoids and other polygons. In this geometry instructional activity, students identify important properties of trapezoids. They create trapezoids and polygons using Cabri software.
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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.
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Inscribed Quadrilaterals and Parallelograms
Learners differentiate between inscribed quadrilaterals and parallelograms. In this geometry lesson, students identify the shaped of the polygons when it is inscribed inside of a circle. They calculate the missing angles of the inscribed...
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How Much Do I Need to Buy?
In this perimeter worksheet, students solve five problems in which they calculate how much floor molding they need to buy for a living room. Students use the provided grid to draw the plan.
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Strongest Polygon
Students define and identify shapes by name. In this geometry lesson plan, students construct, identify and compare polygons based on the number of sides. They classify each shape based on their angle sum theorem.
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If You Can’t Stand the Heat
Students design and build their own solar cooker. In this math instructional activity, students determine the relationship between the angles of the sun, reflection and cooking time of the solar cooker. They test their project, collect...
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Obtuse Triangles
Fourth graders explore obtuse triangles. In this geometry lesson, 4th graders make obtuse triangles with paper and scissors. They determine how to find the center of their triangle.
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Bake, Boil, or Fry
Students write a journal entry about where there food comes from. In this Civil War lesson, students discuss journals, the crops grown within the U.S., the import/export process and what food preparation must have been like on a...
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Load! Ready! Fire!
Learners will identify the parts of a cannon and practice demonstrating a mock firing. In this math and science lesson, students read background information on the cannon and its firing. Learners read about and role play positions near...
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North vs. South
Students use information about the Union and Confederate troops to create a bar graph. In this graphing lesson, students graph troop information on a bar graph, color coding the information. Students then find the differences between...
Pennsylvania Department of Education
Rotational Symmetry of Polygons and Other Figures
Students explore geometry by participating in a shape rotation experiment. For this symmetry lesson, students identify the term symmetry and a list of other geometry vocabulary. Students analyze shapes as they are turned 90 degrees and...
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Application of Delta-Epsilon Definition of the Limit
Students investigate the concept of a Limit and how it is used in a variety of problematic situations. They fold paper to help illustrate how to form equilateral triangles and explain how all the angles are the same. The lesson includes...
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Polygons All Around Us!
Students 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. Students identify different geometric shapes in the...
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