The OZNAKI Project was an educational robotics project inspired by the MIT LOGO Project The project, which ran from 1975-84, used the very earliest micromputers, including the Poly-88 (in 1976+), SWTPC system (1976+), TRX-80 (1977+), Apple ][ (1978 +). Featured chunky graphics attuned to the graphics capabilities of these early microcomputers. Educational aim was the enhancement of mathematical abilities, including problem solving and spatial abilities, primarily through the design of teaching modules which featured the multiple embodiment of mathematical ideas.
This web pages offers brief glimpses of the project. For a fuller description, consult the key papers on OZNAKI:
Download by clicking the PDF token.
Other papers re OZNAKI and related are available at the Download site

Glimpses of the OZNAKI Project at La Trobe 1975 - 84
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OZNAKI Beginnings
Story in the Australian, 1975.
The OZNAKI Project at La Trobe University was in 1975 one of the very few computer projects anywhere directed at primary school students. In 1976 it became the first educational project world-wide using microcomputers. The very first microcomputer LOGO was developed at La Trobe.
Toddler operating  PLUSMINUS Toddler with PLUSMINUS keyboard attachedto computer á
Modelled operation of addition (+) and subtraction (-) by adding/subtracting from thenumber of lights on.
This toddler's calculator, with large + and - keys, featured row of 9 lights, each above a number 1 ..9. illuminated in Cusinere colours. The user is aged 20 months.
This electronic calculator was replaced by graphics program PLUSMINUS in 1977, where either a large two key pad was used, or speech input via a microphone. Computer was the Poly-88, with same "s-100" bus as the Altair. Speech Input was via Heuristics SpeechLab a s-100 bus speech I/O board. See pix speech I/O
 ZONKY connected to Poly-88 Wizard Box Specialised Keyboard TV adapted as monitor
OZNAKI Turtle robot (1976) ZONKY the first TurtleRobot constructed outside US/UK, could go F(orward), B(ack), R(ight), L(eft), while H(onking) and A(light), and sing a simple tune.
Click on small turtle to view newspaper story (1975) re prototype version of ZONKY, based on model tank chassis,
Recursive Turtle In OZNAKI images could be constructed out of small copies of themselves. This is a Turtle built-up from Turtles.

Big block Turtle The same OZLOGO turtle made up of square blocks

Block-Recursive Fractal Concept in OZ-LOGO This note is rather technical, being directed at mathematicians.
Talking Communicator Newspaper Photo shows severely disabled student using 5 (large) key interface to draw -- she was also for first time able to do multi-digit sums and other simple maths as well as use communicator for written/spoken communication.
Computer Communication Access and Programming by Severely Disabled Project evolved from the Oznaki Project
Foot control design for student with severe ataxia.
5-key Keyboard of Prototype Talking Communicator

Prototype + User

Non-vocal handicapped user of PLUSMINUS via prototype Talking Communicator
The prototype was based on the Poly-88, which was in 1976 the first Intel 8080 microcomputer with built-in graphics. The subsequent TRX-80 was of similar configuration -- but in the astonishing maufacturing volume of 20,000 p.a.
One feature of OZNAKI block graphics was the possibility of rendering a design with scaled copies of itself. This is actually the key idea in fractal image compression. For more about the block-recursive fractal concept. see the web account of the version of WHAM tailored for the MicroBee called OZLogo Screen shot of Poly-88 WHAM circa 1978. The turtle has been directed about the 16X16 region to the left, by LOGO commands, marking or unmarking each square. Then this region has been "snapped" to produce the icon on lower right. Note that in the MicroBee version, called OZLogo this new icon can used by the screen turtle (NAKI) to mark squares.
Talking Communicator Mark ][ Circa March 1983 with 5-key keyboard for students with moderate impairment. Ten Communicators were developed and programmed for specific students at the Yooralla Special School, Melbourne. Speech output was via the Votrax SC-01 phoneme generator,which was the very first speech chip commercially released in 1981/2. The single-board computer that powered this unit was in fact the motherboard of the early version of the Australian microcomputer, the MicroBee.
The Talking Communicator Project is detailed in papers listed and in some cases Downloadable.
OZNAKI Project was concerned with objective evaluation via psychometric tests. One intriging test was the Driving Test which a child had to guide a model car about the streets of a model town, keeping the car on the correct side of the dual carriageway. In the "Left-Handed Route" task the subject was asked to guide the toy car from car-park A to car-park B, as marked on the map, making left-hand turns only. (See Pix)

Click to View a Larger Image of the Maze used in studies of Projective Ability
With the experimental group of 27 children aged 8 - 13, only 4 could perform this task in the pretest. whereas, after 8 lessons with OZNAKI 21 succeeded. On the other hand, in the matched control group, 4 out of the 27 initially succeeded, whereas when the test was presented again, only 3 succeeded. Other improvements were as large and generally consistent.

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