Instructional Video
Curated Video

You Tube (Practutor): Order Three Objects by Length; Compare the Lengths

Pre-K - 1st Standards
This video uses many examples and pictures to show students how to compare and order three objects by length. [3:49]
Instructional Video
PBS

Pbs Kids: Cleo and Epidermis

Pre-K - 1st Standards
On this adventure, learn about how you measure the mass of a quantity to figure out which ones contain surprises! This learning module has students comparing quantities to figure out which one has more mass.
Instructional Video
Loyola University Chicago

Math Flix: Comparing Equal Fractions

Pre-K - 1st Standards
This QuickTime movie provides an opportunity to compare different fractions to see if they are equal. As you watch and listen to the teacher and students interact it helps clarify this concept.
Instructional Video
Khan Academy

Khan Academy: Comparing Numbers of Objects

K Standards
The video uses pictures to explain the concept of more than, less than, or the same as.
Instructional Video
Khan Academy

Khan Academy: Comparing Numbers on the Number Line

K Standards
The video uses a number line to compare numbers less than or equal to 10.
Instructional Video
Other

Vantage Learning: Ordering Objects by Length

Pre-K - 1st Standards
This video gives visual techniques for ordering three objects from the shortest to the longest. [3:03]
Instructional Video
PBS

Pbs: Odd Squad: How to Deal With a Saffron Slimer

K - 1st Standards
Oscar uses a pan balance to compare weights, and explains what you should do if you come across a Saffron Slimer.