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Up, Up and Away
Tenth graders experiment with gravity and air pressure. In this geometry lesson, 10th graders build their own kits and fly it. They investigate the questions: what keeps a kite in the air and what are some important factors when flying a...
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Paper Towel Structure
Students investigate technology and its purpose in the workplace. In this geometry lesson, students design and build a paper towel structure to investigate motion and forces. They are given a restricted weight and asked to build their...
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Triangle Sum Theorem
Tenth graders investigate the theorems of angles and lines to prove triagle sum theorem. In this geometry lesson, 10th graders discuss the theorems of triangles and how it is used to solve for missing sides or angles. They review how two...
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Triangles in My Life
Tenth graders investigate where in the real world triangles are used. In this geometry lesson plan, 10th graders write an essay describing where in their lives triangles are used. They can use food, buildings, clothing or anything...
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Scale
Students apply concepts of scales to solve problems. In this geometry lesson, students solve real world problems using scales, proportions and ratios. They predict the actual size of a model given the scale drawings.
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Indirect Measurement
Learners measure and apply their knowledge of proportion to solve problems. In this geometry lesson, students measure using a meter stick, small mirror and measuring tape. They compare and contrast their measurements to objects outside...
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Measuring the Egyptian Way using the Pythagorean Theorem
Students measure using the Pythagorean Theorem. In this geometry instructional activity, students solve right triangles using the properties of the Pythagorean theorem. They apply the same knowledge to solving story problems.
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Perimeter Word Problems
Tenth graders solve for the perimeter and rewrite word problems. In this geometry lesson, 10th graders label different shapes and set up the corresponding ratios as equations. They solve for the missing side and calculate the values for...
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Perimeter and harder equation practice
Learners calculate the perimeter of different shapes. In this geometry lesson, students set up the relationship of the perimeter using equations. They set up the proper ratio and solve using the distributive property. They relate...
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Coordinate Plane
Tenth graders draw, label, plot and locate points on a coordinate plane. In this geometry lesson, 10th graders define a coordinate plane and identify the different quadrants. They relate coordinate plane to the game of battleship as they...
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Solid Surface Area
Learners calculate the area of solids. In this geometry lesson, students use formulas to find the surface are and the volume of solids. They investigate 3-dimensional shapes.
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The Value of Volume
Students measure the perimeter and area of their polygons. In this geometry lesson plan, students calculate the volume and area using the correct tools. They calculate the time and temperature and the perimeter and side lengths of...
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Introduction to Polyhedra
Learners investigate Euler's Formula. In this geometry lesson, students perform an inductive activity of Euler's Formula using nets to identify a variety of prism, pyramids, cylinders, and cones.
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Volume of Prisms
Students calculate the volume of different polygons. In this geometry lesson, students identify the relationship between base and height. They calculate the area of each prism and cylinder.
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To the Moon
Pupils explore circumference manipulating Moon Pie wrapper. In this geometry lesson, they manipulate snack wrappers to find circumference, diameter, radius and distance.
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Finding the Area of Regular Polygons
Students analyze relationship between the increase in polygons sides and a circle. In this geometry lesson, students relate the size of the central angle of a polygon, to a circle. They compare the formula for the area of a polygon and a...
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Angles
Learners measure angles using a protractor. In this geometry lesson plan, students solve for the missing angles using equations set to the theorem of triangles. They measure missing angles through construction and identify congruent angles.
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Contructions and Conjectures
Students make constructions and conjectures. In this geometry lesson, students construct right, acute and obtuse angles using a straight edge and a protractor. They investigate parallel lines and the angles formed by the angles.
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Special Triangles and Circles
Students investigate special triangles and circles. In this geometry lesson, students construct a perpendicular bisector and discuss angles of a triangle. They find the angle bisectors, vetex and the types of circle constructed.
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Measurements in Sports
Sixth graders study measurement problems. In this geometry lesson, 6th graders discuss the different types of measurement used in sports and answer questions regarding measurement problems in sports.
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Right Triangle Geometry
Students study the basic principles of right triangle geometry needed to solve for unknown values of a right triangle. They apply and master the principles of right triangle geometry by solving problems.
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Congruent Triangles
Tenth graders explore congruent triangles. In this geometry lesson, 10th graders investigate the conditions necessary to prove two triangles are congruent by SSS, ASA, AAS, or SAS.
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Polygon Sum Conjecture
Students calculate the sum of the angles of a polygon. In this geometry lesson, students use the interior angle formula of polygon based on the number of sides of the polygon. They identify the missing angle using algebra.
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Algebra/Geometry Institute Summer 2007: Graphing Activity
Seventh graders practice identifying coordinates by examining a city map. In this graphing lesson, 7th graders create coordinate directions on an index card and practice locating these locations on a grid. Students read and...