Best Fit Line Rulers

The Lightbulb Moment

Draw your best fit line more easily!

Draw your best fit line more easily!

Pearson’s international schools community website now features an article about the invention of the Best Fit Line Ruler. Click here to read the article.

And if you like what you see, you can click International Shopping for a link to your nearest distributor or to buy direct from us if you are outside those regions. Our North American distributor, Arbor Scientific has a short video to show you what the BFLR is all about.

And you can keep up with all BFLR matters (including great competitions) by joining our Facebook page!


Great Best Fit Lines resources free to download

Want to help students understand Best Fit Lines? Got a science club, or activities week and need some more materials for the students? Click here to find our great STEM resources now available free to download.

The Best Fit Line Ruler is a stationery innovation to help you draw the line of best fit on a scatter graph. Just lay the clear ruler over your graph, once data points have been plotted, and the grid on the BFLR will help you to make sure you get as many points as possible as close as possible to the central slot. Then slide your pencil along the groove and there’s your best fit line.

Watch the instructions video!

Patent awarded!

The patent on this amazing invention was recently awarded, to add to its Registered Design status. The simple innovation behind Best Fit Line Rulers has proved a big hit with teachers and pupils alike.  Some schools have gone as far as to provide one for every pupil. “So simple it’s brilliant,” said Dr Mike O’Neill,  erstwhile Teacher of the Year. Drawing a best fit line on a graph in maths, physics, biology, chemistry, geography or even design & technology can be a very important graphical skill. The best fit line ruler makes the job much easier to draw your best-fit lines and for GCSE or A Level studies there are often marks awarded for showing the data trend line so using a bestfitlineruler can be useful for gaining these points. In analysis of experimental results a bestfit line ruler will allow you quickly and easily spot any linear pattern in the data and draw the line of best fit with ease.


© Miles Hudson 2007-2012