In this application of arithmetic, students analyze the changing population of bison in the Americas.

In this video tutorial, students are shown how to use their counting skills to add two numbers.

In this video tutorial, students are shown how to use their counting skills to subtract two numbers.

In this video tutorial, students are shown how to use the technique of Counting On to improve the speed and accuracy of th

In this video tutorial, students are shown how to use Skip Counting and Counting On to quickly and accurately coun

In this video tutorial, students are shown how to Skip Count by 2's, 5's, and 10's using three different examples.

This cheat sheet gathers together the resources on the topic of counting and cardinality. See the descriptions and links below. Each link takes you to a collection of resources around that topic.

In this PowerPoint presentation, have students use their counting skills to add numbers.

In this PowerPoint presentation, have students use their counting skills to add numb

This interactive reviews key third and fourth grade vocabu

This tutorial provides an overview of using skip-counting to multiply numbers.

In this drag-and-drop game, have students practice their counting skills to add numbe

In this drag-and-drop game, have students practice their counting skills to subtra

In this drag-and-drop game, have students practice their Counting On skills.

In this drag-and-drop game, have students practice their Skip Counting skills.

This is the transcript to the video entitled "Video Tutorial: Counting and Addition."

This is the transcript to the video entitled "Video Tutorial: Counting and Subtraction."

This is the transcript to the video entitled "Video Tutorial: Counting On."

This is the transcript to the video entitled "Video Tutorial: Counting Strategies."

This is the transcript to the video entitled "Video Tutorial: Skip Counting."