Content Showcase: Video Library

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 video tutorial, students are shown how to use their counting skills to subtract two numbers. Three detailed examples show how to use counting to subtract.

In this video tutorial, students are shown how to use their counting skills to add two numbers. Three worked-out examples provide an opportunity for students to see how to use their counting skills to add.

In this video tutorial, students are shown how to use Skip Counting and Counting On to quickly and accurately count large numbers of items. This video lays the groundwork for developing addition skills.

In this video tutorial, students are shown how to Skip Count by 2's, 5's, and 10's using three different examples. The video builds on the concept of counting and cardinality.

In this video tutorial, students are shown how to use the technique of Counting On to improve the speed and accuracy of their counting, using three different examples. The video develops the concept of counting and cardinality.

In this video tutorial students learn how to calculate the mean when all of the data items are positive numbers. Includes three real-world examples.

In this video tutorial students learn about sample mean from a random sampling of data. All examples involve normally distributed data with a known population mean and standard deviation. Includes three real-world examples.

In this video tutorial students learn about normally distributed data and how to identify the population mean from the normal distribution. Standard deviation is briefly introduced. Includes three real-world examples.

In this video tutorial students extend their understanding of mean by looking at examples of weighted means (sometimes referred to as weighted averages). Includes three real-world examples.

In this video tutorial students learn how to find the median of a data set. The mean is also calculated so that students can learn similarities and differences between these two measures of central tendency. Includes three real-world examples.

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.

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 arrange decimal data using place value techniques.

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.

Video Tutorial: The Distributive Property: a(bx - c), all constants negative. In this video, we will use the distributive property with an expression of the form a(bx - c), all negative.

Video Tutorial: The Distributive Property: a(bx - c), a negative, b and c positive. In this video use the distributive property with an expression of the form a(bx - c), a negative, b and c positive.

Video Tutorial: The Distributive Property: a(bx - c), all constants positive. In this video use the distributive property with an expression of the form a(bx - c), all constants positive.

Video Tutorial: The Distributive Property: a(bx + c), all constants negative. In this video use the distributive property with an expression of the form a(bx + c), all negative.

Video Tutorial: The Distributive Property: a(bx + c), a negative, b and c positive. In this video, we will use the distributive property with an expression of the form a(bx + c), a negative, b and c positive.

Video Tutorial: The Distributive Property: a(bx + c), all constants positive. In this video use the distributive property with an expression of the form a(bx + c), all constants positive.