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 ...

Before you submit an error, please consult our Video Help page. Math Mights is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Hello brainiacs, I'm Ms Kirszman. Let's get mathematical. I love receiving really challenging tasks to ...

If you've ever used a spreadsheet, you've probably used or seen functions for doing date math—in other words, taking one date and adding some number of days or months to it to get a new date, or ...

Parents have gotten the message that reading with their children can help instill lifelong literacy skills. A new study adds to the evidence that parents can be providing the same boost to numeracy ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Hi, my name is Miss James and I can't wait to find out just how clever you are in our lesson today. For ...

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 ...

Make sense of line plots with lengths in halves and quarter inches. Join Ms. Askew for a fun Fraction Number Talk Sort. We'll also make sense of line plots with lengths in halves and quarter inches.

Greg Duncan before delivering the keynote address at the Silicon Valley Education Foundation’s forum on early math. Credit: Lillian Mongeau, EdSource Today A study showing that early math skills are ...