Nummòlt - construction toys

Math Cats are welcome here. Link to Math Cats.

www.nummolt.com

Math manipulatives & construction toys

Visit our new page: OBBL math toys & games
Adding apples and oranges (pears, lemons...), Egyptian fractions, How much pizza? ...

Computer math tiles.

Mathematical toyboxes.

Teaching resources about mathematics and physics. Built by architects.

Numbers grinder.

10 interactive projects:

Nummolt modulo applet.

Nummolt Modulo applet (May 2012: v2.02) (Work in progress).
Base ten blocks, addition, subtraction, Polygonal numbers, Modular arithmetics. [Java applet]
Video help files at: www.nummolt.com/modulo/help/index.html.

nummòlt.
From 7 years

Base 10 blocks manipulative: Integers are transformed into small blocks. That can be manipulated to solve elementary operations. Is useful to teach about numbers, place value, and elementary operations.
Matters: borrowing in subtraction, adding positive and negative numbers, multiplication by negative numbers....

160Kb. Win16 Windows9X nummolt.zip

Online Help:

Done in 1998 Release 3 Developing time: 1995/6/7 (C++)
Video Help: -- + -- * /? () -(x) +x-x +-?
Video Help: Playing: Quadrillion Signed parenthesis

Math Touch apps: (Android)

Touch Fraction

Touch Fraction:
Construction of the rational numbers.
Interactive fraction app.
Select equivalent fractions with the rational representation diagram.
The program is useful to understand:
fractions, coordinate geometry, rational numbers, cartesian plane, slope,
and the equivalent classes of pairs of integers.
video playlist

obbl.
For everybody. (Elementary )

Construction toybox: Building blocks: Flat blocks. With gravitation. Beam blocks adhere among them. Thumbtacks are fixed blocks.

JavaScript (cellular automata)

Done in 2000 - 2001.

Activity: Adding integers: 1+2+....+n.

Collaboration:
with MathCats in obbl.

Playing with OBBL:

Little archaeologist...

Math
Water
Table.
(All ages).

Area workshop. Container blocks. To explain area and division.
It converts numbers in area units.
To measure area, filling figures. Didactic tool, and also a toy.
(Former Obbliq).

JavaScript + html5
(cellular automata)

August 2001-Feb 2005.
Feb 2013:
MWT Math Water Table v.1.0.0: MWT video help (youtube)

Old obbliq Help:
Obbliq and division #1: #2: Obbliq and Piaget's volume conservation
old obbliq video help Index:
Vol 3*2=2*3 3/0.5 PI

obblog 2.
From 15 years.

Logic construction toybox. Logic blocks. To explain binary logic, and learn about truth tables. It allows to keep the work. Binary logic simulator .

JavaScript + html5
(cellular automata)

Done in 2001 (Cellular automata.).
Updated: 2013
Help:
Obblog2 YouTube Playlist
Old Help:
Truth Tables videos: index
Binary counter
Binary countdown

Balance simulated: to weigh electrons, neutrons, atoms, virus, bacteria, ants, flies, eggs, thin cats, jumping cats, fat cats, donkeys, elephants, dinosaurs, houses, skyscrapers, pyramids, comets, moons, planets, stars and galaxies

MathCats Balance.
All ages.

Balance: To weigh a wide range of objects: from electrons to galaxies. Cats included. To play with division, fractions, multiplications, rational numbers, huge numbers and tiny numbers.

JavaScript

Done in 2003.
Help:
Balance Help
Collaboration:
Math Cats - Nummòlt

cinemice
Cinemice projector: V.01

Cinemice Projector: Format compatible with Cine Nic Projectors (Super Nic format). Toys and Cinema. Films posted with permission. (Museu del Cinema de Girona).

JavaScript/Java Navigator / Explorer

Done 2004-2012:
Museu del Cinema: www.museudelcinema.cat
Standalone cinemice
Offline version:
Cinemice main page
From Cinemice to reality:
From Cinemice to Cine-NIC

Cinemice Android

Cinemice apps: (Android)

Camera Patchwork

Camera Patchwork:
The application allows 360 degree views.
The program builds the image using a projection of the sphere similar to Mollweide.
The images are constructed from 300 small images.
The camera takes a picture when it detects a new spin 8 degrees in either direction.
Move the camera slowly.
We recommend vertical sweeps, moving to the right or the left.
Free app

OBBL Math Toys Android apps: