5 Editorial

6 Letters

11 Science notes

11 Frictional wrap and the exponential function Ian MacInnes and Stuart Smith
18 An alternative way to teach the refl ection of light Alan Trusler
19 Moon-phases machine Candida Lonsdale
21 Daytime astronomy - fi nding the period of rotation of the spinning Sun
Ben Rogers
24 Gems from the past Geoff Auty
25 Helpdesk

27 Special editorial : Applied science - a fresh look

31 Applied sciences - your choice Ken Gadd
There is now a broad range of applied science courses available at key stage 4 in England and Wales. This article groups them and describes each one briefly.

37 Modernising science for the 21st century: GCSE in Applied Science Mark Orrow-Whiting
What is the view of applied science courses from the Qualifi cations and Curriculum Authority?

41 Planning and implementing applied science Ken Gadd
What issues and challenges are there for science departments introducing applied science at GCSE level? What help is available?

49 Applied learning through GCSE science: SSAT lead practitioner networks Claire Moody
The Specialist Schools and Academies Trust (SSAT) applied science lead practitioner programme supports teachers by spreading leading practice

51 GCSE Additional Applied Science in the Twenty First Century Science suite Peter Campbell
What makes this single-award course so attractive to students and teachers alike?

57 Double Award Applied Science: issues and responses Jacqueline Bell and Jim Donnelly
A study of schools implementing GCSE Double Award Applied Science describes the issues they faced and how schools have responded

67 Fishermen assess the abundance of whales, dolphins and porpoises Joanna Stockill
Not all scientifi c data needs to be collected by scientists. Fishermen's knowledge has proved valuable in assessing abundance of marine mammals in the North Sea.

75 Making an impact with the Big Bang Brian Fisher
Students studying physics at sixth-form level engaged in a vigorous debate, asking whether the idea of the Big Bang can be consistent with belief in a creator

81 Death Valley or bust Andrew Carpenter
Using a new personal learning experience to develop classroom practice

91 Fungi 4 Schools - the website David Moore
Specially produced and ready-to-use lessons and classroom activities, teacher's guides and pupils' class sheets, are among many resources available for free download from a new website

95 Using the learning company approach to allow students to investigate acids and bases Torsten Witteck and Ingo Eilks
By means of a 'learning company', students encounter new cooperative approaches to a chemistry topic, conduct open experimentation and learn about processes in a company

103 Teachers' strategies for making effective use of datalogging Rosemary Deaney, Sara Hennessy and Kenneth Ruthven
Four case studies from a wider research project illustrate experienced practitioners' strategies for using datalogging technology to support teaching and learning in secondary whole-class settings

113 School science and citizenship: retrospect and prospect Edgar Jenkins
In the light of the introduction of Twenty First Century Science, it is illuminating to review the relationship of school science and citizenship

119 The importance of evaluation during curriculum development: the SNAB experience Jenny Lewis and Anne Scott
In-depth evaluation of implementation during the pilot of a new and innovative advanced biology course (Salters-Nuffi eld Advanced Biology) allowed the developers to identify teachers' needs and design suitable support materials

128 Book reviews

138 ICT reviews

142 Science websearch

144 Notes for contributors/Special issues list/Index to advertisers