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  1. Geoboards in the Classroom - Tom Scavo
    A Web unit for teachers from Tom Scavo that offers suggestions for using geoboards to explore the length and area of two-dimensional geometric figures. The Introduction includes pages that describe materials needed, offer discussion and activities for investigating length and area (in particular Pick's Theorem), and provide sample pages of dot paper to print out. Five lesson plans focus on lines, squares, rectangles, parallelograms, and right triangles, and a short bibliography rounds out the unit. more>>

  2. Math Learning Center (MLC) - Gene Maier
    A non-profit Oregon-based educational organization that develops and publishes curriculum materials, provides continuing education for teachers, consults with educational agencies, and provides opportunities for parents and others to become knowledgeable about alternatives in mathematics education. Products and services include publications and teaching supplies (books, manipulatives). Materials are typically teaching guides designed for sensory-rich, highly interactive, textbook-free classroom settings, stressing visual thinking entailing the use of models, sketches and other graphic representations. Curricula include Bridges in Mathematics; Algebra Through Visual Patterns; Opening Eyes to Mathematics; Visual Math and Math Alive!; Number Corner; Box It or Bag It Mathematics; and Story Boxes. Conferences, seminars, and workshops are listed, and a searchable catalog is provided. more>>

  3. Toys from Trash - Arvind Gupta
    Step-by-step photographic instructions for building elegantly simple, colorful "Math Magic" do-it-yourself manipulatives: Abacus, Flexagon, Triangle Grid, Flat Flexagon, Slipper Insets, Folding Pentagon, Tangram, Paper Octagon, Cylinder and Cone, Area of Triangle, Inset Puzzle, A4 to Pentagon, Clock Face Cut Cake, Triangle to Square, Triangle to Rectangle, No-Glue Cube, Roulette, Geoboard, Star Patterns, Soap Films, Soap Path, Paper Diamonds, Paper Cobweb, Circle to Ellipse, Fun Fractions, Square Box, T-Puzzle, Plus Puzzle, Old Slipper Insets, Diameter of Refill, Square to Cylinder, Finger Multiplication, Broomstick Multiplication, Paper Protractor, Envelope Tetrahedron, Circle to Rectangle, Rectangle to Circle, Add Angles, Möbius Twist, Folding Parabola, Pythagoras Theorem, Bit by Bit (binary counting on your fingers), Prismatic Patterns, Which Holds More? and more. Some of these homemade constructions come with "one minute films" in English, Hindi, Malaysian, Marathi, Bangla, Tamil, Kannada, and other languages. Others feature PDFs to download for more detailed instructional prompts. See also Gupta's categories "Amazing Astronomy," "Pumps from the Dump," "Paper Fun," "Tipping Toppling Toys," "Motor and Generator," "Electricity and Magnetism," "Newton Unplugged," "Fun with Pressure," "Fun with Light," "Simple Sounds," "Strong Structures," "Flying Toys," "Force Fun," "Spinning Toys," "Air and Water," and "String Games." Gupta has won recognition from the Indian National Science Academy (Indira Gandhi Award for Science Popularisation), the Council of Science Education International (Mary McCurdy Award), and the National Association for the Blind among many other awards. more>>


Mason error

component stack:   /library/branch.html
code stack:   /var/lib/mason/obj/library/branch.html:208

debug info:   Debug file is '/var/lib/mason/debug/anon/13'.


raw error:

error while executing /library/branch.html:
Server message number=1105 severity=17 state=1 line=1 text=Can't allocate space for object 'keystorage' in database 'catalog' because 'default' segment is full/has no free extents. If you ran out of space in syslogs, dump the transaction log. Otherwise, use ALTER DATABASE or sp_extendsegment to increase size of the segment.
Statement=INSERT INTO keystorage ( keys ) VALUES ( '18702;12811;63650;7403;74987;2678;9181;9173;18833;59283;8717;8680;8694;75350;4803;6611;8744;7741;12828;3981;6927;8730;64769;8485;8785;8519;8512;64223;3337;8548;10030;8716;6465;4979;77140;64327;8553;5566;7749;6...
Server message number=7101 severity=17 state=1 line=1 text=Unable to allocate new text value, dbid 6.
Statement=INSERT INTO keystorage ( keys ) VALUES ( '18702;12811;63650;7403;74987;2678;9181;9173;18833;59283;8717;8680;8694;75350;4803;6611;8744;7741;12828;3981;6927;8730;64769;8485;8785;8519;8512;64223;3337;8548;10030;8716;6465;4979;77140;64327;8553;5566;7749;6...
HTML::Mason::Interp::__ANON__('Server message number=1105 severity=17 state=1 line=1 text=Can\'...') called at /usr/lib/perl5/site_perl/5.6.0/Forum/Key.pm line 284
Forum::Key::store(undef, 'Forum::Key=HASH(0x8f30aac)') called at /var/lib/mason/obj/library/branch.html line 208
HTML::Mason::Commands::__ANON__('passed_args', 'HASH(0x8f62f4c)', 'tree', 'resource_types', 'branch', 'manipulatives') called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Component.pm line 131
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x8fa8568)', 'passed_args', 'HASH(0x8f62f4c)', 'tree', 'resource_types', 'branch', 'manipulatives') called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 653
require 0 called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 653
HTML::Mason::Request::comp('HTML::Mason::Request::ApacheHandler=HASH(0x8fb5548)', '/library/branch.html', 'passed_args', 'HASH(0x8f62f4c)', 'tree', 'resource_types', 'branch', 'manipulatives') called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Commands.pm line 70
HTML::Mason::Commands::mc_comp('/library/branch.html', 'passed_args', 'HASH(0x8f62f4c)', 'tree', 'resource_types', 'branch', 'manipulatives') called at /var/lib/mason/obj/library/dhandler line 90
HTML::Mason::Commands::__ANON__('start_at', 1, 'num_to_see', 50, 'keyid', 39480724) called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Component.pm line 131
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x8f67390)', 'start_at', 1, 'num_to_see', 50, 'keyid', 39480724) called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 653
require 0 called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 653
HTML::Mason::Request::comp('HTML::Mason::Request::ApacheHandler=HASH(0x8fb5548)', 'HASH(0x8f9c37c)', 'HTML::Mason::Component::FileBased=HASH(0x8f67390)', 'start_at', 1, 'num_to_see', 50, 'keyid', ...) called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 159
require 0 called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 159
HTML::Mason::Request::exec('HTML::Mason::Request::ApacheHandler=HASH(0x8fb5548)', '/library/resource_types/manipulatives', 'start_at', 1, 'num_to_see', 50, 'keyid', 39480724) called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/ApacheHandler.pm line 914
HTML::Mason::ApacheHandler::handle_request_1('HTML::Mason::ApacheHandler=HASH(0x8de2afc)', 'Apache=SCALAR(0x8e18d20)', 'HTML::Mason::Request::ApacheHandler=HASH(0x8fb5548)', 'HASH(0x8eaa86c)') called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/ApacheHandler.pm line 560
require 0 called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/ApacheHandler.pm line 560
HTML::Mason::ApacheHandler::handle_request('HTML::Mason::ApacheHandler=HASH(0x8de2afc)', 'Apache=SCALAR(0x8e18d20)') called at /etc/httpd/conf/handler.pl line 97
HTML::Mason::handler('Apache=SCALAR(0x8e18d20)') called at /dev/null line 0
require 0 called at /dev/null line 0