You Are Invited to Design and Build a Dream Room

Enlargements and reductions are all about scale. The instructional activity introduces scale drawing to the class. Pupils determine whether the drawing is a reduction or an enlargement, and the constant of proportionality between the...

Classmates create a scale drawing from another scale drawing, changing the scale in the process. Groups enlarge or reduce the scale of the drawing and discuss their processes.

Pupils determine scale factors from one figure to another and the scale factor in the reverse direction. Scholars compute the percent changes between three figures. 

What exactly is the difference between Celsius and Fahrenheit? Watch this video to find out. Sal identifies and defines the Celsius and Fahrenheit scales, assesses the differences, and then labels boiling and freezing on each of the...

Develop a sense of scale. After watching a video about scaling up and scaling down objects, the class participates in a discussion around scale factors. Pupils make a connection between scaling using division and scale factors between...

Enlargements make it bigger, right? A video shows viewers how to perform a basic dilation with a fractional scale factor. They learn how to use the scale factor to find the location of the transformed vertex by multiplying the horizontal...

Scale the challenge of learning about ratios and scales. Young mathematicians learn to incorporate fractional measurements when considering scales and scale factors. They use an interactive to investigate the concept and critically...

Your learners will dance in their seats as this talented drummer connects math to music in a short video clip. Clayton Cameron shows how math puts the "cool" in various genres of music, including jazz, hip-hop, pop,...

For I have miles to go before I truly understand map scales. By watching a video, scholars learn about map scales. They see how to determine actual distances on a map using the scale and how to calculate the map scale.

How will a scale factor affect a figure—negatively? Using a grid, the narrator of an engaging video performs a dilation with a negative scale factor. The presenter compares a positive scale factor with a negative scale factor to explain...