Browse:
Material Type: Simulations
(Complete Item Description)
- Abstract: Learn about velocity and acceleration vectors. Move the ball with the mouse or let the simulation move the ball in four types of motion (two types of linear, simple harmonic, circle). See the velocity and acceleration vectors change as the ball moves.
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- Abstract: This animation shows how velocity and position of an aircraft are resolved in a 3-D Cartesian coordinate system.
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- Abstract: An interactive applet and associated web page that demonstrate the properties of a 30-60-90 triangle. The applet shows a right triangle that can be resized by dragging any vertex. As it is dragged, the remaining vertices change so that the triangle's angles remain 30 degrees, 60 degrees and 90 degrees The text on the page points out that the sides of a 30-60-90 triangle are always in the ratio of 1 : 2 : root 3 Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
(Complete Item Description)
- Abstract: An interactive applet and associated web page that demonstrate the properties of a 3:4:5 triangle - one of the Pythagorean triples. The applet shows a right triangle that can be resized by dragging any vertex. As it is dragged, the remaining vertices change so that the triangle's side remain in the ration 3:4:5. The text on the page has an example of how the triangle can be used to measure a right angle on even large objects. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
(Complete Item Description)
- Abstract: An interactive applet and associated web page that demonstrate the properties of a 45-45-90 isosceles right triangle. The applet shows a right triangle that can be resized by dragging any vertex. As it is dragged, the remaining vertices change so that the triangle's angles remain 45 degrees, 45 degrees and 90 degrees The text on the page points out that the sides of a 45-45-90 triangle are always in the ratio of 1 : 2 : root 2 Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
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- Abstract: Many systems involve some type of time keeping. By using 555 integrated circuit in astable state it is easy to design and make accurate and cheap timing circuit (e.g., alarm circuit, counting circuit, sensing circuit, etc.) The working principle of this 555 IC in astable state is supported by the following formulae: Timing period, Timing=(R1+2R2) C/1.44.
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- Abstract: An interactive applet and associated web page that shows that angle-angle-angle (AAA) is not enough to prove congruence. The applet shows two triangles, one of which can be dragged to resize it, showing that although they have the same angles they are not the same size and thus not congruent. The web page describes all this and has links to other related pages. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
(Complete Item Description)
- Abstract: An interactive applet and associated web page showing how the AAA similarity test works. Two similar triangles are shown that can be resized by dragging. The other triangle adjusts to remain similar and the angle-angle-angle elements are highlighted to show how they are involved in this test of similarity. (all three interior angles congruent). The web page describes all this and has links to other related pages. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference interactive geometry reference book project at http://www.mathopenref.com.
(Complete Item Description)
- Abstract: An interactive applet and associated web page that shows how triangles that have two angles and a non-included side the same must be congruent. The applet shows two triangles, one of which can be reshaped by dragging any vertex. The other changes to remain congruent to it and the two angles and non-included side are outlined in bold to show they are the same measure and are the elements being used to prove congruence. The web page describes all this and has links to other related pages. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
(Complete Item Description)
- Abstract: This animation depicts the blood typing of a hypothetic "patient A" using the ABO and Rh system.
- Subject:
Science and Technology
- Grade Level:
Post-secondary
- Collection:
H.E.A.L.
(Complete Item Description)
- Abstract: Roger Sabbadini, Ph.D., was the motivation behind this animation. The actin-myosin crossbridge system is complex, and we are really only speculating on the details in many ways. However, if a picture is worth a thousand words, this one second, 15 frame, animation is worth at least 15 thousand.
- Subject:
Science and Technology
- Grade Level:
Secondary, Post-secondary
- Collection:
Individual Authors
(Complete Item Description)
- Abstract: An interactive applet and associated web page that demonstrate acute angles (those less than 90 deg). The applet presents an angle (initially acute) that the user can adjust by dragging the end points of the line segments forming the angle. As it changes it shows the angle measure and a message that indicate which type of angle it is. There a software 'detents' that make it easy capture exact angles such as 90 degrees and 180 degrees The message and angle measures can be turned off to facilitate classroom discussion. The text on the page has links to other pages defining each angle type in depth. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
(Complete Item Description)
- Abstract: An interactive applet and associated web page that demonstrate the three types of triangle: acute, obtuse and right. The applet shows a triangle that is initially acute (all angles less then 90 degrees) which the user can reshape by dragging any vertex. There is a message changes in real time while the triangle is being dragged that tells if the triangle is an acute, right or obtuse triangle and gives the reason why. By experimenting with the triangle student can develop an intuitive sense of the difference between these three classes of triangle. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
(Complete Item Description)
- Abstract: An interactive applet and associated web page that show the concept of adjacent angles (two angles that share a common leg). The applet shows three line segments with a common endpoint. The user can move the center one and see that the angles on both sides (the adjacent angles) of it are affected. Applet can be enlarged to full screen size for use with a classroom projector. After use in the classroom, students can access it again from any web browser at home or in the library with no login required. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
(Complete Item Description)
- Abstract: An interactive applet and associated web page that demonstrate the the concept of adjacent arcs. The user can 3 drag points around a circle that define the endpoints of two adjacent arcs. Web page has the properties of adjacent arcs. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
(Complete Item Description)
- Abstract: This animation identifies the topography of dermatomes of the adult dermis, demonstrating the segmentation of the human body.
- Subject:
Science and Technology
- Grade Level:
Post-secondary
- Collection:
H.E.A.L.
(Complete Item Description)
- Abstract: Interactive animation showing the changes occurring to an ice-shelf in relation to the temperature of the surrounding water.
The animation has been created on the basis of the most recent models created by the modelling team of the antarctic research called ANDRILL.
- Subject:
Science and Technology
- Grade Level:
Secondary
- Collection:
ANDRILL
(Complete Item Description)
- Abstract: The Horn of Africa has been experiencing exceptional droughts over the last decade. Using data collected from the NOAA POES satellite, changes in the severity of the drought conditions in the Horn and around the world are shown.
- Subject:
Science and Technology
- Grade Level:
Primary, Secondary, Post-secondary
- Collection:
NOAA
(Complete Item Description)
- Abstract: In "Against All Odds", students follow a young person's flight from oppression in his or her home country to exile in an asylum country. The game is intended to increase students' awareness and knowledge about refugees -- where they come from, what situations they have faced and how they adapt to their new lives. Educators across the United States can help students learn about the plight of refugees and understand the importance of treating refugees with tolerance and respect. UNHCR offers free educational materials for teachers of grades 4-12, including lesson plans, magazines, videos, Posters and games.
- Subject:
Social Sciences
- Grade Level:
Primary, Secondary
- Collection:
United Nations
(Complete Item Description)
- Abstract: Welcome to the NROC Introductory Algebra course. This curriculum emphasizes a multi-representational approach to algebra, with concepts, results, and problems being expressed graphically, analytically, and verbally. It develops algebraic fluency by providing students with the skills needed to solve equations and perform important manipulations with numbers, variables, equations, and inequalities. In addition, the course develops proficiency with operations involving monomial and polynomial expressions. The main unifying themes of the course include understanding, writing, solving, and graphing linear equations, systems of linear equations and inequalities, quadratic equations, and rational equations.
