Math
Open Reference Project - Interactive Textbook
Volume 4 - Plane Geometry
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Math
Open Reference Project - Interactive Textbook
Volume 4 -
Plane Geometry
National
Library of Virtual Manipulatives for Interactive Mathematics
MathsNet
Interactive Shape
Get a clear and complete understanding
of shapes, their patterns and properties. You will be able to change the
pictures yourself using the mouse and see the effect these changes have.
MathsNet
sketches - interactive geometry activities made with
Building
with Cubes
Interactive
Geometry - Ambleside Primary School
Dynamic
Geometry Problems - NRICH
Absorb
Mathematics Online Textbook
View units
on types of lines, working with angles, bearings, geometric constructions,
loci and enlargement/ratio.
similar
triangles - Smile Mathematics
interactive Flash movie
angle
sum of triangle
angles
of a polygon - Nicholas Exner
triangle
relations
Manipulate triangles and see the
values of the sides and angles.
Numeracy
Hour - Ambleside Primary School
exterior
angles of a polygon
triangle
properties
special lines and circles for a
triangle e.g. circumcircle and incircle
triangle
centres
animations for the circumcentre,
orthocentre and centroid
geometry
of the triangle - Sylvain Deshayes
Manipulate
a triangle and investigate special points, lines and circles.
enlargements
- R.F.Barrow
Select the triangle image, centre
of enlargement and enlargement factor and see the image and the coordinates
of the two shapes.
pantagraph
This device uses a parallelogram
to draw similar shapes.
horizontal
machine
Two parallelograms are used to hold
an object in a horizontal position.
Midpoints
of the sides of a quadrilateral form a parallelogram.
MathArt
WebQuest
webquest connecting geometry and
art - material on tessellations, tangrams, golden rectangle, technical
drawing, fractals, cartography, origami, wycinanki
Mathdance
classroom activities for teaching
mathematics and performing arts through whole-body movement
tangrams
circle
angle theorems 1
circle
angle theorems 2
Investigate angles standing on the
same arc, angle in the alternate segment and opposite angles of a cyclic
quadrilateral.
circle
angle theorems 3
polyominoes
Pappus'
theorem - Java applet
trisection
of an angle
Stars
applet
Interactive
String Parabolas - Alfinio Flores
Create string art or curve stitching
online.
transformation
golf
Play golf by rotation, reflection
and translation of the ball on the cartesian plane.
three
dimensional drawing
activities in isometric, oblique
and perspective drawing - includes an interactive demonstration of
two-point perspective
Isometric
Drawing Tool - NCTM
Create dynamic
drawings on isometric dot paper.
spirograph
- David P. Little
Change the radii and offset by sliders
and watch the wheel turn. Values are given for a cardioid, astroid, rose,
vertical line, ellipse, spiral, ... (applet can be downloaded).
Anamorphic
Art - Count On
In anamorphic
art, distortion is removed by viewing the image in a special way.
Anamorph
Me! software
This freeware
can read images in the most common formats and carry out a range of anamorphic
transformations - including oblique, cylindical mirror and conical mirror.
Art,
Science, Nature, Engineering, Mathematics and Relationships - Brantacan
bridges, architecture (arches and
beams), Mathematics in nature, ...
Geometry
Junkyard
enormous collection of geometry
links
Curves
- collection of links - Jill Britton
links for conics, Moire patterns,
curve stitching, curves of constant width, cycloids, spirograph, fractals
Topology
(Rubber Geometry) - collection of links - Jill Britton
links for anamorphic art, Jordan
curves, mazes, networks, map colouring, string figures, Moebius strip,
puzzles, flexagons
MSWLogo
Logo software
and resources
Wingeom
software
Wingeom is
for high-precision geometric constructions in both two and three dimensions.
Drawings can be highlighted and animated in a variety of ways.
Geometer's
Sketchpad software (demo available)
dynamic geometry construction and
exploration tool
other
links