Issue 05How to make... How to make: a slide rule Make calculations easy with this simple-to-make slide rule Chalkdust6 March 2017Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window) Privacy & Cookies: This site uses cookies. By continuing to use this website, you agree to their use. To find out more, including how to control cookies, see here: Cookie Policy You will need scissors a printed copy of these images (click to enlarge) Instructions 1. Cut out the two scales. 2. Do lots of fun calculations. More from ChalkdustHow to Expect the UnexpectedWe review the fifth of this year's nominees for Book of the YearThe Secret Lives of NumbersWe review the fourth of this year's nominees for Book of the YearOnce Upon A PrimeWe review the third of this year's nominees for Book of the YearThe Truth DetectiveWe review the second of this year's nominees for Book of the YearThat’s MathematicsWe review the first of this year's nominees for Book of the YearChalkdust Book of the Year 2023We announce the shortlist of our favourite maths-themed books of last year