Demonstrates how to use bar models to solve word problems involving fractional parts. [5:34]

Demonstrates how to draw a diagram for a word problem that asks for the margin width for an image that must be centered on a page. [3:40]

In this lesson, you will learn to solve word problems involving subtraction of unlike fractions by using fraction bars. [5:28]

In this lesson, you will learn that the digit in one place is 1/10 the value of the digit to the left by using base ten blocks. [3:08]

In this lesson, you will learn how to solve multi-step problems by drawing a model. [3:32]

In this lesson, you will learn to solve word problems involving subtraction of unlike mixed number fractions by using area models. Login gives access to a slideshow and additional videos. [6:10]

This lesson is an introduction to subtraction but without using the symbol yet. Instead, the operation is presented as 'how many more' and visual images are shown using one-to-one correspondence to demonstrate the difference between two...

In this lesson you will learn how to count money by drawing pictures. [3:48]

Sal uses an area model to multiply 16x27.

Sal uses place value, the distributive property, associative property, and an area model to show more ways to multiply.

Sal uses an area model to multiply 6 x 7981.

In this lesson, students are shown how to draw a diagram as an aide to solving a math problem. It is 2 of 8 in the series titled "Drawing a Diagram."

In this lesson, students are shown how to draw a diagram as an aide to solving a math problem. It is 5 of 8 in the series titled "Drawing a Diagram."

In this lesson, students are shown how to draw a diagram as an aide to solving a math problem. It is 6 of 8 in the series titled "Drawing a Diagram."

In this lesson, students are shown how to draw a diagram as an aide to solving a math problem. It is 8 of 8 in the series titled "Drawing a Diagram."

In this lesson, students are shown how to draw a diagram as an aide to solving a math problem. It is 1 of 8 in the series titled "Drawing a Diagram."

This lesson demonstrates how to express math in terms of pictures, and how to translate pictures to math. It is 3 of 9 in the series titled "Expressing Math in Pictures."

In this lesson, students are shown how to draw a diagram as an aide to solving a math problem. It is 3 of 8 in the series titled "Drawing a Diagram."

Demonstrates how to solve a word problem using a bar model as in the Singapore Math method. [1:57]

In this lesson, you will learn to convert real-world situations into equations by using models. [2:33]

Demonstrates how to solve a word problem using bar models as in the Singapore Math program. [3:13]