In mathematics education, the Van Hiele model is a theory that describes how students learn geometry. The theory originated in 1957 in the doctoral dissertations of Dina van Hiele-Geldof and Pierre van Hiele (wife and husband) at Utrecht University, in the Netherlands. The Soviets did research on the theory in the 1960s and integrated their findings into their curricula. American researchers did several large studies on the van Hiele theory in the late 1970s and early 1980s, concluding that students' low van Hiele levels made it difficult to succeed in proof-oriented geometry courses and advising better preparation at earlier grade levels. Pierre van Hiele published Structure and Insight in 1986, further describing his theory. The model has greatly influenced geometry curricula throughout the world through emphasis on analyzing properties and classification of shapes at early grade levels. In the United States, the theory has influenced the geometry strand of the Standards published by the National Council of Teachers of Mathematics and the new Common Core Standards. (Wikipedia).
The Atom A4 The Bohr Model of the Hydrogen Atom
The Bohr model of the atom.
From playlist Physics - The Atom
The Atom A5 The Bohr Model of the Hydrogen Atom
The Bohr model of the atom.
From playlist Physics - The Atom
How to Make/Build a Van de Graaff Generator Part 1 (Homemade/DIY)
Step-by-step description of making a Van de Graaff generator built using parts from around the house such as a Coke can and rubber bands. I also show how to test it using an electroscope. For Part 2 of How to Make a Van de Graaff Generator, including more getting 20% better performance, r
From playlist Currently Popular
The Korteweg-de Vries equation (1895)
The Korteweg-de Vries equation (1895) is a model of shallow water waves. https://en.wikipedia.org/wiki/Korteweg%E2%80%93de_Vries_equation da/dt = -0.5 * a * da/dx - d³a/dx³ How do the waves manage to pass through each other!? Simulated as 256 floats. One of the new patterns in Ready 0.1
From playlist Ready
The Atom A3 The Bohr Model of the Hydrogen Atom
The Bohr model of the atom.
From playlist Physics - The Atom
What is the Bohr model of the atom?
This video looks at the pioneering work of Niels Bohr who proposed a novel model of the atom in 1913 which would lay the foundations for a quantum mechanical treatment ten years later. After discussing the limitations of Thomson's Plum Pudding model and Rutherford's Nuclear model, Bohr's q
From playlist Quantum Physics
Physics - Thermodynamics 2: Ch 32.1 Def. and Terms (21 of 25) van der Waals Eqn Isotherms Other Form
Visit http://ilectureonline.com for more math and science lectures! In this video I will re-write the van der Waals equation in a different format (one that I prefer). Next video in this series can be seen at: https://youtu.be/9pH5F0l9UEc
From playlist PHYSICS 32.1 THERMODYNAMICS 2 BASIC TERMS
Physics - Thermodynamics: States: (8 of 10) Van Der Waal's Equation
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the Van Der Waal's equation Next video in this series can be seen at: https://youtu.be/GOrbIqmSvD0
From playlist PHYSICS - THERMODYNAMICS
Fall Meeting 2012 Van Allen Lecture: Magnetospheric Exploration
Van Allen Lecture: SM34A. Magnetospheric Exploration: Basic Research with a High Public Purpose - 2012 AGU Fall Meeting Abstract: http://abstractsearch.agu.org/meetings/2012/FM/SM34A-03.html From the first in situ measurements of trapped radiation by J.A. Van Allen and coworkers with Ex
From playlist Van Allen Belts Playlist
Expert spotlight: Lessons from the pandemic – data in a world reshaped by COVID-19
Up-to-the-minute insight into how data science and AI supported the Valencian Government in their decision-making regarding COVID-19. About Shaping and influencing the global dialogue on the intersection of data science and engineering, The Alan Turing Institute’s first-ever data-centric
From playlist DCE Summit
Mirror symmetry for character varieties and field theory by Sergey Galkin
Date/Time: Wednesday, March 4, 2:00 pm Title: Mirror symmetry for character varieties and field theory Abstract: In a joint work in progress with Swarnava Mukhopadhyay and Pieter Belmans we use mirrors for projective threespaces as building blocks to construct mirrors for moduli spaces o
From playlist Seminar Series
Courses - E. PRESUTTI "Phase transitions in systems with spatially non homogeneous interactions”
I will describe recent results and works in progress on the absence/presence of phase transitions in systems with spatially non homogeneous interactions. In a first part I will consider the d ≥ 2 nearest neighbor ferromagnetic Ising model under the action of a non negative, space dependent
From playlist T1-2015 : Disordered systems, random spatial processes and some applications
The Physics of Rock Episode 3 The Eddie-Endrix Equation
In this video we examine the one-dimensional wave equation when both damping and string stiffness are considered. We call the resulting model the "Eddie-Endrix" equation and we look closely at the inharmonicity introduced by damping and by the string stiffness. The full length version of
From playlist The Physics of Rock
Pushing the Limits of Human Mobility - with Eline van der Kruk
How can we use mathematics and physics to prolong mobility and even win the Olympic Games? Subscribe for regular science videos: http://bit.ly/RiSubscRibe Eline van der Kruk takes you on a journey to the world of biomechanics, a place where computer simulations and smart sensors are being
From playlist Ri Talks
ART HISTORY and DRAWING: 15 MINUTES with SIR ANTHONY VAN DYCK
Marc spends 15 minutes with the drawings of Sir Anthony Van Dyck, baroque Flemish painter, (1599-1641).
From playlist ART HISTORY & DRAWING
Tips from Teachers on Moving Laboratory Experiences Online
In response to the Covid-19 pandemic, many schools and universities are moving their instruction temporarily online. One of the approaches taken by teachers is to move their face-to-face instruction to live online sessions, and facing challenges to maintain the same level of interaction as
From playlist From MIT Open Learning and OCW
Sebastiaan A.L.M. Kooijman: DEB theory: where fascination meets profession
Find this video and other talks given by worldwide mathematicians on CIRM's Audiovisual Mathematics Library: http://library.cirm-math.fr. And discover all its functionalities: - Chapter markers and keywords to watch the parts of your choice in the video - Videos enriched with abstracts, b
From playlist Dynamical Systems and Ordinary Differential Equations
(ML 13.6) Graphical model for Bayesian linear regression
As an example, we write down the graphical model for Bayesian linear regression. We introduce the "plate notation", and the convention of shading random variables which are being conditioned on.
From playlist Machine Learning