(to 7.20)

9.36 MI 10: Mathematical Investigations:
15: Decimals for Ever
How to cut cake into thirds by cutting it into quarters.
followed by: How Likely?
To start a game, is it fair to toss a coin? Why?
(R)

9.58 Thinkabout: Pigeon Racing

10.15 Science Workshop: Tracks (B)

10.38 Exploring Science: Patterns of Growth

11.0 The History Trail: The Silver Buckle: 3
by Joan Aiken
Thoby's time as a servant on the plantation is coming to an end. But his mother suspects that cousin Sebastian is plotting to kill him - and that brother Richard is already dead. Certainly, Sebastian is being very secretive about a body in the forest.
(R)

11.22 Past Thirteen: Choosing for What?

11.45 Politics and You: You and the Law
Police powers to stop and search, and the rights of animals used in experiments - through these two issues the first of this political education series examines how laws are made, and what you can do if you think a law should be changed.
(R)

12.5 pm Buongiorno Italia!: 16: Rivediamo un po'...
For beginners in Italian
(R)

12.30 Prima!: 6: Zweimal, Bitte!
Eight short programmes about tourist German
(R)

12.45 Bellamy's New World: 5: Oklahoma OK!
Presented by David Bellamy
Eight films exploring America and its botanical history.
(R) (Ceefax subtitles)

1.20 Appuntamento in Italia: Citta e campagna
Una giornata a Siena; Un altro mondo; La grande citta.
(R)

1.38 Around Scotland: The Valley of the Scots: 1: The Scots of Dalriada
The Scots who settled in Argyll in the sixth century.
(R)

2.0 You and Me
A series for 4- and 5-year-olds
Cosmo, Dibs and Gary Wilmot are tasting different foods in the market. A family has a meal in a Chinese restaurant.
(R)

2.15 Music Time: Question and Answer

2.40 History File: Divided Ireland

with subtitles, followed by Weather

Fifth of eight programmes Another Country
With no hope of private lodging or council housing, and faced with DHSS regulations designed to stamp out 'scrounging' in bed and breakfast hotels, growing numbers of unemployed young people are forced to squat or sleep rough.
In the basement of a derelict London rock venue, Red
Herrings finds out what it's like to live in a refrigerator, and talks to two squatters' groups, Critical Mass and the Black Sheep Collective, who believe that the only solution to the housing crisis facing young people lies in direct action.
Film editor HORACIO QUEIRO Produced by CHRIS LENT
(Postponed from 23 January)
The Red Herrings File contains background notes and useful contacts. Send a large sae and 28p postage to: [address removed]

The classic space adventure series chronicling the exploits of the captain and crew of the USS Enterprise.
Starring William Shatner as Captain James T Kirk, Leonard Nimoy as Mr Spock, DeForest Kelley as Dr McCoy

When in Rome... or even on Planet 892-IV, to which the Enterprise is led by the debris of a lost starship. Adapt or die is the philosophy in this earthlike place, where the Empire never fell, tyranny rules and television ratings demand more victims for the gladiatorial arena. (R)

Seventh of eight programmes on the mammals of Britain Presented by Tony Soper Britain can boast of 41 native mammal species; we used to have more, but we've lost bears and beavers, and some Would say that rats and coypu are a poor exchange. But all our mammals are fascinating, whether they are 'Ratty' or 'Mole', and even those that live underground have a story to tell if you dig deep enough.
Film editor HUGH TASMAN Producer BRYN BROOKS
Tony Soper 's book 'Discovering' Animals', £8.95 hardback, £4.95 paperback, from booksellers

A series of seven programmes 6: Getting Out from Under
Peasants and small farmers have always been under pressure, either from landlords or from economic stringency, and nowadays is no exception. In Europe and America more and more of them are going to the wall, and today the cities and towns, which in medieval times provided safety and security, don't seem to hold quite the same promise, as industries come and go.
John Seymour reports from around the world.
John Ormond narrates.
Film cameraman RUSS WALKER Film editor JOHN BREWSER Producer BRIAN TURVEY
John Seymour 's book, 'Far from Paradise, £9.50 from booksellers

Moto-cross 1965
It's Dave Bickers ... it's
Jeff Smith ... it's Murray Walker with moto-cross.'
Series producer JEFF GODDARD (R)

Face to Face
A young woman meets the man who indecently assaulted her. A man meets the arsonist who set fire to his flat. Criminals and their victims, brought together in a new Home Office experiment - Brass Tacks has been allowed unique access to these extraordinary confrontations.
Michael Robinson examines the implications for the victims, the criminals and the courts, when both parties to a crime agree to meet face to face.
Film cameraman MARTIN LIGHTENING Film editor GORDON HOWE Research Liz CARNEY
Executive producer COLIN CAMERON Producer DEBORAH CHRISTIE BBC Manchester
The Brass Tacks Talkback line is open until 11.0 pm tonight on [number removed]or leave a message anytime on the answerphone on [number removed]

A series of films about the way we live now
'I'm British', says the young lady with strawberry blonde hair and a Midlands accent, 'but I don't have a drop of British blood in me.' Carmen Laanemagi is from Leicester - and Estonia. Pauline Riemers is a nurse in Epsom; her parents are Latvian. Algis Kuliukas, a British Airways computer programmer, lives in Hounslow; he's part-
Lithuanian. Last July they embarked on the Baltic Star in Stockholm. It was the beginning of an emotional and exciting voyage.
The aim was to sail as close as they could get to the coasts of Lithuania, Latvia and Estonia - now part of the Soviet Union.
Forty years ago their parents had fled as refugees when the three Baltic states lost their short-lived independence. Now the lost children were returning - hoping for a distant glimpse of home. Narrator Ian Holm
Photography COLIN MUNN and IAN STONE Film editor GLENN HYDE
Producer RICHARD LIGHTBODY Editor EDWARD MIRZOEFF
* CEEFAX SUBTITLES

The sixth game in BBC2's International Snooker Championship features former World Champion Ray Reardon , winner of the very first Pot Black tournament in 1969. The Welshman, who also won the televised championship in 1979, takes on another former World Champion, Alex 'Hurricane' Higgins, still bidding for his first Pot Black title.
Commentator TED LOWE Referee JOHN WILLIAMS Presenter David Icke Director PETER HAYWARD Producer JOHN G. SMITH BBC Pebble Mill

John Tusa, Peter Snow, Donald MacCormick and Olivia O'Leary
with Jenni Murray and Ian Smith

11.20 Weatherview

11.25 Weekend Outlook
Weekend Outlook helps you plan your weekend by previewing daytime programmes of special interest from the Open University on Saturday and Sunday. This week's selection includes Sociology: The Moonies and A Profile of Charles Ives
A BBC/Open University production

What sort of techniques help young children who are beginning to read?
(R)
(to 0.00)