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Lesson Planet

Congruent Rectangles

For Teachers 7th - 9th Standards
Very simply, geometers examine a pair of rectangles on graph paper and find a translation and rotation to demonstrate their congruence. A couple of questions follow to stimulate critical thinking about other possibilities.
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Lesson Planet

Flower Vases

For Teachers 7th - 9th Standards
Which vase holds more water: a cylinder, sphere, or cone? Figure out which should be used for your sister's birthday bouquet with this practical word problem.
Lesson Planet

Glasses

For Teachers 7th - 9th Standards
Provide your class some practice with the dimensions of geometric figures. Here you have a set of three different-shaped, stemmed drinking glasses with diameters and heights provided. Math-minded individuals calculate the volume of each....
Lesson Planet

Partitioning a Hexagon

For Teachers 7th - 9th Standards
The task at hand is to partition a hexagon into two, four, and eight congruent figures. Make sure to give your wizards a sheet of triangle grid paper on which to decompose the hexagons. Have them explain which rotations, reflections, or...
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Lesson Planet

Reflecting a Rectangle Over a Diagonal

For Teachers 7th - 9th Standards
Use the handout as guided or independent practice in drawing a reflection of a rectangle over a line. Three rectangles are provided for practice in addition to a critical thinking question.
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Lesson Planet

Areas of Geometric Shapes with the Same Perimeter

For Teachers 7th - 9th Standards
A triangle, square, hexagon, and circle all have a perimeter of one unit. Eighth graders must attempt to find the area of each and arrange them in order from least to greatest areas. A terrific task for applying four different area...
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Lesson Planet

A Rectangle in the Coordinate Plane

For Teachers 7th - 9th Standards
A quadrilateral is drawn on the coordinate plane, and eighth grade geometers find the length of each side and the diagonals by applying the Pythagorean theorem. 
Lesson Planet

Comparing Snow Cones

For Teachers 7th - 9th Standards
Everyone wants to have the biggest snow cone possible, so would that be in cone-shaped cup or a more cylinder-style cup? Hungry geometry juniors compute the volume of each in this practical task.
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Lesson Planet

Reading Literature - An Occurrence at Owl Creek Bridge

For Teachers 11th - 12th Standards
“An Occurrence at Owl Creek Bridge,” Ambrose Bierce’s short story, is used to model how structural moves, the decisions an author makes about setting, point of view, time order, etc., can be examined to reveal an author’s purpose. Groups...
Lesson Planet

Reading Literature - My Last Dutchess

For Teachers 11th - 12th Standards
Draw back the curtain, add a spot of joy to your class, and let learners be lessoned by a close reading exercise that models how to develop an interpretation based on evidence drawn from a text. Robert Browning’s dramatic monologue “My...
Lesson Planet

Artificially Selecting Dogs

For Teachers 6th - 12th Standards
Selective breeding has resulted in some novel and beautiful or useful dogs over the years. Using the American Foxhound as an example, genetics learners find out how and why they came about. Then, in small groups, they select breeds to...
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Lesson Planet

Direct-to-consumer Genetic Testing

For Teachers 9th - 12th Standards
If you knew that you were likely to develop Alzheimer's disease in your future, how would it affect your life in the meantime? This and other similar thought-provoking questions are discussed in a lesson plan about the availability of...
Lesson Planet

DNA, Crime and Law Enforcement

For Teachers 9th - 12th Standards
Civil rights meets biotechnology in a instructional activity that scrutinizes the collection of DNA of citizens who have been arrested, but not yet convicted of a crime. Real-life cases are examined in which the DNA of a relative was...
Lesson Planet

Personalized Medicine

For Teachers 9th - 12th Standards
Genetics learners read an article and watch a video about personalized medicine and the hope it holds for treating patients more specifically than doctors currently are able to. They research, design, and produce a brochure about the...
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Lesson Planet

Genetics, history and the American Eugenics Movement

For Teachers 9th - 12th Standards
A poignant 20-slide show introduces high schoolers to the amazing accomplishments of genomics and raises the question of eugenics. This lesson is only for mature audiences, as it deals with rape and other sensitive topics, but it is...
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Lesson Planet

Genes, Environment and Genetic Complexity: Aggression in Humans

For Teachers 9th - 12th Standards
The highlight of this lesson plan is a 53-minute investigative video, Can Science Stop Crime?" The question asked is whether or not aggressive behavior is caused by genetic factors. The answer has to do with genetic complexity, the...