This is part of a collection of math clip art images that show different vehicles.

This is part of a collection of math clip art images that show different vehicles.

This is part of a collection of math clip art images that show different vehicles.

This is part of a collection of math clip art images that show different vehicles.

This is part of a collection of math clip art images that show different vehicles.

This is part of a collection of math clip art images that show different vehicles.

This is part of a collection of math clip art images that show different vehicles.

This is part of a collection of math clip art images that show different vehicles.

This is part of a collection of math examples that focus on numbers and their properties.

This is part of a collection of math examples that focus on numbers and their properties.

This is part of a collection of math examples that focus on numbers and their properties.

This is part of a collection of math examples that focus on numbers and their properties.

This is part of a collection of math examples that focus on numbers and their properties.

This is part of a collection of math examples that focus on numbers and their properties.

This is part of a collection of math examples that focus on numbers and their properties.

This is part of a collection of math examples that focus on numbers and their properties.

This is part of a collection of math examples that focus on numbers and their properties.

This is part of a collection of math examples that focus on numbers and their properties.

This is part of a collection of self-scoring interactive math quizzes on a variety of topics.

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: Counting to 20."

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

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. Three detailed examples show how to use counting to subtract.

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.

In this video tutorial, students are shown how to use Skip Counting and Counting On to quickly and accurately count large numbers of items.

In this video tutorial, students are shown how to count to 20 using three different examples. The video develops the concept of counting and cardinality.

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

This is part of a collection of math worksheets on the topic of counting and comparing.

This is part of a collection of math worksheets on the topic of counting and comparing.

This is part of a collection of math worksheets on the topic of counting and comparing.

This is part of a collection of math worksheets on the topic of counting and comparing.

This is part of a collection of math worksheets on the topic of counting and comparing.

This is part of a collection of math worksheets on the topic of counting and comparing.

This is part of a collection of math worksheets on the topic of counting and comparing.

This is part of a collection of math worksheets on the topic of counting and comparing.

This is part of a collection of math worksheets on the topic of counting and comparing.

This is part of a collection of math worksheets on the topic of counting and comparing.

This is part of a collection of math worksheets on the topic of counting and comparing.

This is part of a collection of math worksheets on the topic of counting and comparing.

This is part of a collection of math worksheets on the topic of counting and comparing.

This is part of a collection of math worksheets on the topic of counting and comparing.

This is part of a collection of math worksheets on the topic of counting and comparing.

This is part of a collection of math worksheets on the topic of counting and comparing.

This is part of a collection of math worksheets on the topic of counting and comparing.

This is part of a collection of math worksheets on the topic of counting and comparing.

This is part of a collection of math worksheets in which student practice their counting skills by counting Halloween-themed images.