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Devised by Mary Sheridan, the film demonstrates a series of hearing test procedures for use with children from six months to six years.
Dr O’Doherty’s system of examination for evaluating the responses of full-term newborn babies to 17 groups of tests of their tactile, motor, auditory and visual behaviour. Shows that reliable examination...
Deals with the importance of precise objectives, pre-tests and post-tests, programmes, validation and hardware.
A child’s visual competence includes not only visual acuity but also his ability to attach to what he sees. The tests begin at six months and various procedures are demonstrated with children of 2 1/4, 3...
Part 1 explains the Lorentz force by considering a free-moving positively charged particle in a uniform magnetic field and the ‘right-hand’ screw is defined. The helical motion resulting from the...
Explains what microcircuits are and describes the production and applications of integrated circuits.
Part 2 explains fission products of a nuclear reactor, neutron reactions, proton reactions and positron decay.
Gives a simplified explanation of the operation of a two-cavity klystron amplifier. Animated sequences illustrate the operation of the cavity resonators, the bunching of electrons and the amplifying action...
Part 1: Insulators, conductors and semi-conductors are compared and the structure of pure germanium. The concept of electrons and holes and the effects of temperature and electric fields on their movements....
A survey of the methods an instructor can use to teach through the medium of vision. A comprehensive selection of equipment is reviewed - chalk boards, flannel boards, magnetic boards, diagrams, models,...
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Learning on Screen