IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. In the early 20th century, some ...

In the 18th and 19th centuries, draftsmen needed to prepare surveying and architectural drawings according to a variety of scales. Their work might call for them to reduce life-size conditions in a ...

In this KS2 geometry teaching resource, pupils develop their understanding of acute and obtuse angles and use a protractor to measure angles (acute and obtuse) for the first time. This lesson covers ...

Which digital protractor is the best? Protractors, both manual and digital, are used to measure various angles. You might find yourself needing one for a DIY home project or if you’re building ...

Projects pile up on the bench with a ruler that stops at 30 cm, a square for right angles, a separate protractor for odd cuts, a level somewhere in a drawer, and a pencil that has wandered off. Those ...