My Mechanical Ear Can Hear!
Students are introduced to various types of hearing impairments and the types of biomedical devices that engineers have designed to aid people with this physical disability.
Engineering in Reverse!
Students learn about the process of reverse engineering and how this technique is used to improve upon technology. Students analyze push-toys and draw diagrams of the predicted mechanisms inside the toys. Then, they disassemble the toys and draw the actual inner mechanisms. By understanding how the push-toys function, students make suggestions for improvement, such as cost effectiveness, improved functionality, ecological friendliness and any additional functionality they determine is an improve
Cutting Through Soil
Students pretend they are agricultural engineers during the colonial period and design a miniature plow that cuts through a “field” of soil. They are introduced to the engineering design process and learn of several famous historical figures who contributed to plow design.
Solar Water Heater
Student teams design and build solar water heating devices that mimic those used in residences to capture energy in the form of solar radiation and convert it to thermal energy. This thermal energy is next transferred to water (to be used as domestic hot water) in the form of heat. In doing this, students gain a better understanding of the three different types of heat transfer, each of which plays a role in the solar water heater design. Once the model devices are constructed, students perform
Blast Off
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.
Powerful Pulleys
Students continue to explore the story of building a pyramid, learning about the simple machine called a pulley. They learn how a pulley can be used to change the direction of applied forces and move/lift extremely heavy objects, and the powerful mechanical advantages of using a multiple-pulley system. Students perform a simple demonstration to see the mechanical advantage of using a pulley, and they identify modern day engineering applications of pulleys. In a hands-on activity, they see how a
All Caught Up
Commercial fishing nets often trap unprofitable animals in the process of catching their target species. In the following activity, students will experience the difficulty that fishermen experience while trying to isolate a target species when a variety of animals are found in the area of interest. The class will then discuss the large magnitude of this problem. Students will practice their data acquisition and analysis skills, through the collection of data and processing of this information to
Sound for Sight
Echolocation is the ability to orient by transmitting sound and receiving echoes from objects in the environment. As a result of a Marco-Polo type activity and subsequent lesson, students learn basic concepts of echolocation. They use these concepts to understand how dolphins use echolocation to locate prey, escape predators, navigate their environment, such as avoiding gillnets set by commercial fishing vessels. Students will also learn that dolphin sounds are vibrations created by vocal organs
Do Different Colors Absorb Heat Better?
Students test whether the color of a material affects how much heat it absorbs. Students will place an ice cube in a box made of colored paper (one box per color; white, yellow, red and black), which they will place in the sun. The students will make prediction as to which color will melt the ice cube first. They will record the order and time required for the ice cubes to melt.
Portable Sundial
Students investigate the accuracy of sundials and the discrepancy that lies between "real time" and "clock time." They track the position of the sun during the course of a relatively short period of time as they make a shadow plot, a horizontal sundial, and a diptych sundial. (The activity may be abridged to include only one or two of the different sundials, instead of all three.)
Tracking a Virus
Students simulate the spread of a virus such as HIV through a population by “sharing” (but not drinking) the water in a plastic cup with several classmates. Although invisible, the water in a few of the cups will already be tainted with the “virus” (sodium carbonate). After all the students have shared their liquids, the contents of the cups will be tested for the virus with phenolphthalein, a chemical that causes a striking color change in the presence of sodium carbonate. Students will
Does Weight Matter?
Using the same method for measuring friction that was used in the previous lesson (Discovering Friction), students design and conduct an experiment to determine if weight added incrementally to an object affects the amount of friction encountered when it slides across a flat surface. After graphing the data from their experiments, students can calculate the coefficients of friction between the object and the surface it moved upon, for both static and kinetic friction.
Learn with Pictures and Video S4 #13 - Powerful Japanese Learning Technique - Learning Through Oppos
This Japanese video lesson will give you even more Japanese opposites, so stop your ’searching!’ You can ‘find’ all the Japanese resources you need for opposites right here in this lesson! You’ll get get access to one of the most powerful tools for learning Japanese!
This Japanese video series is a brand new way to learn [...]
Fluorine NMR
This article describes the use of fluorine (19F) NMR for the analysis and structure determination of biomaterials. Using a traditional text-with-figures format, the article gives an overview of the synthesis of 19F spin-labeled materials and detailed descriptions of 19F chemical shifts and relaxation phenomena as applied to both primary and tertiary structure determinations of biochemical interest.
Video Recording In Pre-Professional...
Video Recording in Pre-Professional Teacher Preparation:
Connie Synakowski is using video recording as a preparatory tool for pre-professional teacher candidates.
Learn about The Geology of the Earth
This 4:42 video provides a quick overview of the geology of the Earth with good graphics. It would be best to include a handout of terms, such as plates, to help the students. Shows how earthquakes occur as well as other events such as volcanic action.
3.5.3 Address resolution on LANS A host finds the hardware address that corresponds to an IP address by referring to a look-up table that contains the translation between the two types of address. The look-up table could be maintained manually by a network administrator, but this would be very slow. A far better solution is for the host to maintain the table automatically. Whenever a host has to send a datagram to an unknown IP address it sends a message to all the other hosts on the LAN. The host that recognises the IP addr
2.2 The role of technology in the broadcast news industry
BBC News 24, Sky News, CNN – we live in an era where news has become almost instantaneous. This unit will look at how news is gathered and the technology used for its dissemination. You will also be encouraged to examine how information might be manipulated by questioning its reliability.
Math Templates for Spinners
Use the math templates below to create spinners for probability experiments. The templates are designed to be placed in sheet protectors. Students can then customize the spinner for the particular experiment or game. Tape a transparent spinner over top the spinner template for student use. This method allows teachers to create many different spinners using templates and the plastic transparent spinners that are commercially available. This is especially effective when students are designing thei
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