9.15 Mathematics in Action: Mathematical Models
Introduced by Professor John Crank

9.38-9.58 Maths Workshop: Stage 1: Round-up Two
Introduced by Michael Holt

10.25-10.40 Words and Pictures: (A) The Animals in the Ark
by John Tully

11.0 Watch!: A Castle: 1
Introduced by Rosanne Harvey

11.18 Going to Work: The Hotel Trade

11.40 Making Music: The Story of Lieutenant Cockatoo
Introduced by John Langstaff
with children from Minet Junior School, Hayes, Middlesex

Welsh quiz game

For the very young
Pippin and Tog discover what their coats are made of.

Introduced by James Lloyd

A programme for children under 5

by Noel Streatfeild
With Angela Down
Today: Getting to Know Him

A weekly magazine about animals in action, in close-up, and in our lives with Tony Soper

Homes for ducks: Near Ringwood, the Game Conservancy is turning a derelict sand pit into a breeding ground for ducks. Tony Soper visits the place with Charles Coles and sees hundreds of white-fronted geese wintering in the area.

Where Vultures fly!: At Arcos, a high-level village near Seville in Spain, you can look down on vultures. Tony Soper reports from Arcos.

Canadian Summer: ...a look at some of the animals you would be lucky to see in North America, including terrapins, sharp-tailed grouse, red-winged blackbirds, and marmots.

(From BBC South and West)

A cartoon film series
The underwater adventures of Marine Boy, the Ocean Patrol, and the white dolphin, Splasher

A new film series with Parsley the lion and Dill the dog in some untoward happenings.
A FilmFair Production

The facts, the people, the background of the nation's capital

Nationwide
The news, features, opinions of the country at large, co-ordinated by Michael Barratt from BBC studios throughout the United Kingdom

by Allan Prior
Starring James Ellis, John Slater, Derek Waring
with Ian Cullen, Douglas Fielding and Bernard Holley

Goss knows a big job is on and who the operators are... but nothing else.

A musical salute to Spring and the romantic turn of a young man's fancy. Stars on both sides of the Atlantic combine to bring you a fast-moving show of music... and some smiles - even though Spring is a little late this year.
Your hosts: Noel Harrison and Bobbie Gentry
Their guests: Shirley Bassey, Goldie Hawn, Rod McKuen, Meredith MacRae, Irwin C. Watson and Harpers Bizarre

International Professional Boxing: Joe Bugner v Ray Patterson
In tonight's big fight in London, Bugner, 20, continues his fight-a-month schedule following wins over Roberto Davila (Peru) and Manuel Ramos (Mexico).
Swedish-based American Patterson, 27, makes trip No 7 to Britain. Last time here Jack Bodell beat him. He fights rarely (36 bouts in seven years) and in February was beaten by Jurgen Boin, former German heavyweight champion.
(Big Fight: page 6)

8.45 The Main News
With Kenneth Kendall and the BBC's correspondents

9.0* Apollo 13: Splashdown
Re-entry due 9.2
Parachutes open 9.11
Splashdown 9.16
On deck 10.10
200 miles off Christmas Island James Burke introduces live coverage from the South Pacific, including for the first time a camera on board one of the recovery helicopters, and exclusive BBC interviews with Commander 'Chuck' Smiley and the crew of Helicopter 66 which has picked up all 12 astronauts who have been to the moon before this mission; Lieutenant Ernie Jahnke and the Underwater Demolition Team swimmers; and Captain Lee Kirkemo, commander of the Prime Recovery Ship USS Iwo Jima.
Presented in association with EBU, NBC, US Navy and NASA
(Big Splash: page 6)

10.15 * International Match of the Day: England v Northern Ireland
from the Empire Stadium, Wembley
In tonight's Home International Championship Match, England make their last appearance before Mexico on the famous ground where they won the World Championship in 1966.
(Big Match: page 6)

Presented by Kenneth Allsop with the latest news in pictures