IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. From the time of Descartes (1596–1650 ...

Students go over using number lines to solve the four equations in a fact family. In this lesson, students go over using number lines to solve the four equations in a fact family. Julia uses charts, ...

This is a preview. Log in through your library . Abstract The number line is often recommended as an aid for the teaching of whole number addition and subtraction. The possible stages in young ...

Number lines can help you see where a number is compared to another number. You can create a number line that goes up to any number. You can then look at the part of the number line that's the most ...

When you estimate a number you decide approximately, or roughly, how big that number is. To estimate accurately, you need to have a good understanding of the value and order of numbers. A number line ...

The pirates are bored, so they count the number of people in line using ordinal numbers. The pirates are bored, so they count the number of people in line using ordinal numbers. Meanwhile, Peg, Cat, ...