Measure with centimeter cubes to find the length of reptiles. Add & subtract within 100. Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. What do you ...

You may have seen surveyors (or maths students) running around with measuring wheels, counting the clicks to measure distances. [AGBarber]’s digital measuring wheel works in much the same way, but ...

The metric system is used to measure the length, mass or capacity of an object. Length is measured in millimetres (mm), centimetres (cm), metres (m) or kilometres (km). Mass or weight is measured in ...

We've known for years that a short cervix is a risk factor for a preterm delivery. Now we have an easy way to measure and correct this issue. My patient was 22 years old and midway through her first ...

The length of an object is the distance from one end to the other. Height measures how tall an object is. You can measure lengths or heights using centimetres and metres. The height of a plant would ...

Since the scale line of a general ruler has a width, many people have had the experience of trying to draw a line of the correct length with a ruler and wondering 'how far should I draw this scale ...