In this application of arithmetic, students analyze the changing population of bison in the Americas. Using real-world data and applying key math concepts, students will do some sophisticated analysis using basic skills.  These are the key math concepts covered: Place value Skip counting Doubling Data analysis Given the wide disparity in the population of bison over several centuries, students will be analyzing data in the millions but using place value to gain a clear understanding of the numbers involved.

Americans manufacture, use, and recycle plastic products. In this activity students look at data regarding the use of plastics in order to learn and apply skills related to place value.

In this video tutorial, students are shown how to use their place value skills to build and break down numbers. Three detailed examples show how to use place value.

In this video tutorial, students are shown how to use their place value skills to count by tens. Three detailed examples show how to use counting tens to solve problems.

In this video tutorial, students are shown how to use their place value skills to count by tenths. Three detailed examples show how to use counting tenths to solve problems.

In this video tutorial, students are shown how to use their place value skills to make tens. Four detailed examples show how to use making tens to simplify addition.

In this tutorial, students learn how to compare and order decimals using place value techniques.

In this tutorial, students learn how to compare and order whole numbers using place value techniques.

In this tutorial, students arrange decimal data using place value techniques.

In this tutorial, students learn how to write decimals in expanded and standard form using place value techniques.

In this tutorial, students learn how to write whole numbers in expanded and standard form using place value techniques.

In this tutorial, students learn how to write decimals in rounded form using place value techniques.

In this tutorial, students learn how to write whole numbers in rounded form using place value techniques.