Rockets need a lot of thrust to get into space. In this lesson, students learn how rocket thrust is generated with propellant. The two types of propellants are discussed and relation to their use on r...
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Rockets need a lot of thrust to get into space. In this lesson, students learn how rocket thrust is generated with propellant. The two types of propellants are discussed and relation to their use on rockets is investigated. Students learn why engineers need to know the different properties of propellants.
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Students are introduced to the circulatory system, the heart, and blood flow in the human body. Through guided pre-reading, during-reading and post-reading activities, students learn about the circula...
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Students are introduced to the circulatory system, the heart, and blood flow in the human body. Through guided pre-reading, during-reading and post-reading activities, students learn about the circulatory system's parts, functions and disorders, as well as engineering medical solutions. By cultivating literacy practices as presented in this lesson, students can improve their scientific and technological literacy.
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Students should have discovered in their reading from Activity 1 the term "logarithm." It is at this point that students will begin their study of logarithms. Specifically, they will be examining the ...
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Students should have discovered in their reading from Activity 1 the term "logarithm." It is at this point that students will begin their study of logarithms. Specifically, they will be examining the definition, history, and relationship to exponents. (Specifically, they will be rewriting exponents as logarithms and vice versa, evaluating expressions, solving for a missing piece.) Students will continue their examination of logarithms by studying the properties of logarithms (Multiplication/Addition, Division/Subtracting, Exponents). Students will complete a set of practice problems from the textbook or a worksheet ion which they will practice and apply the skills they have learned (rewriting logarithms and exponents, evaluating expressions, solving/examining equations for a missing variable.) Students will complete a short quiz over what they have studied thus far concerning logarithms. These problems will be similar to the homework problems the students have completed.
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In this lesson students revisit the mathematics required to find bone mineral density, to which they were introduced in Lesson 2. They will learn the equation to find intensity and how to use it. Ther...
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In this lesson students revisit the mathematics required to find bone mineral density, to which they were introduced in Lesson 2. They will learn the equation to find intensity and how to use it. There is a sheet of practice problems included which has students practice using this equation.
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Students find the volume and surface area of a rectangular box (e.g., a cereal box), and then figure out how to convert that box into a new, cubical box having the same volume as the original. As the...
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Students find the volume and surface area of a rectangular box (e.g., a cereal box), and then figure out how to convert that box into a new, cubical box having the same volume as the original. As they construct the new, cube-shaped box from the original box material, students discover that the cubical box has less surface area than the original, and thus, a cube is a more efficient way to package things. Students then consider why consumer goods generally aren't packaged in cube-shaped boxes, even though they would require less material to produce and ultimately, less waste to discard. To display their findings, each student designs and constructs a mobile that contains a duplicate of his or her original box, the new cube-shaped box of the same volume, the scraps that are left over from the original box, and pertinent calculations of the volumes and surface areas involved. The activities involved provide valuable experience in problem solving with spatial-visual relationships.
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