# Category - Measurement

## Revealing Equivalent Ratios By Scaling In Tandem

Visual number talk prompts emerging the idea of revealing equivalent ratios by scaling in tandem with ratio reasoning.

## Where Does The Area of a Circle Formula Come From?

Visual number talk prompts unpacking where the area of a circle formula comes from by decomposing the circle and recomposing into a rectangle

## How to Find the Circumference of a Circle Using Pi, π

Visual number talk prompts exploring the ratio between the circumference and the diameter known as Pi, π with ratio & rate reasoning.

## Area of Composite Figures With Non-Standard Units

Visual number talk prompts that explore the area of a composite figure by decomposing and recomposing with non-standard units.

## Multiplicative Comparison With Volume

Visual number talk prompts comparing the volume of 3-D figures multiplicatively using various standard and non-standard cubic units.

## Understanding Area of a Circle Conceptually

Let's tackle Area of a Circle conceptually using a series of visual prompts to help students generate the formula for finding the area of ANY circle...

## Understanding Area of a Triangle Conceptually

Let's tackle Area of a Triangle conceptually using a series of visual prompts to help students generate the formula for finding the area of ANY...

## How To Convert Units of Measurement Visually

Tackle Measurement and in particular unit conversion conceptually using a series of visual prompts to help students generate relationships between...

## Understanding Area of a Rectangle Conceptually

Let's tackle Area of a Rectangle conceptually using a series of visual prompts to help students generate the formula for finding the area of ANY...