What on Earth is Greater Than?

Challenge young mathematicians' understanding of inequalities with a simple multiple choice exit ticket. Given that x is greater than or equal to eight, students must select real-world contexts and a number line that are rpresented...

Review the differences among equations, expressions, and inequalities. Demonstrate with a scale how an equation balances out on both sides, and how an inequality has a set of solutions. Present a few real-world problems for your...

Four inequality statements are given for the same two negative numbers. The resource is a good practice for pupils to interpret statements of inequalities relative to the position on the number line. The objective is for pupils to learn...

Elementary schoolers count and order objects using numbers 1-300. They bring recyclable items from home. Learners group the items, skip count by 2's, 3's, and 5's, and arrange the items on a number line. Recyclable plastic bags are put...

What's my number? Spark mathematical thinking and have some fun with thirty number puzzles that pose a series of questions to guide learners towards number discovery. 

Practice solving compound inequalities by isolating an unknown variable. This is the second video in a series of four focused on solving compound inequalities.

If your class struggles with graphing inequalities, or if your lecture could use some help from Sal, this video would be a great help. Sal's instruction is measured and patient, and viewers will walk away feeling more confident and...

Introduce your class to Google Calendar with a collaborative learning project that asks groups to create and share a Google calendar that compresses the history of life on Earth into a single year. Groups research a geological era...

Students research the amount and sources of water on Earth. They interpret data to create a physical representation of water and land mass on the planet. They then use art materials to create a visual and tactile representation of...

What temperature does water freeze? Have your learners show in an inequality all the possible temperatures. The video demonstrates how to set up an inequality based on the situation given and how to graph it. Also, it explains...