Subtraction Teacher Resources

Algebra II scholars will flip over a unit that introduces them to polynomials and follows Common Core standards. The first lesson models how to use the distributive property to multiply polynomials and factor trinomials by grouping....

Teach young traffic controllers what it takes to control planes safely. The first lesson in a series of six introduces the class to the air traffic control situation. The pupils examine units used in air travel, then learn how to read...

Don't be irrational when working rationals. Here are some resources that explore the difference between the two categories of numbers. Included are some good thinking questions that have learners explain their reasoning.

For beginners to music theory, these seven worksheets outline reading sheet music, the difference between bass and treble clef staffs, and basic music nomenclature.

Power up! A series of six lessons introduce middle schoolers to the different types of energy. PowerPoints, activities, and hands-on experiments teach young electrical engineers the difference between energy and power, as well as the...

The second unit in the series examines the complex relationships between animals and plants in the whitebark pine community of Waterton-Glacier International Peace Park. In the first of five lessons, scholars mimic Clark’s Nutcracker...

When is a theme not a theme? The resources in this collection explain the difference between subject, motif, and theme, model how to determine the theme(s) in literature and art, and offer opportunities to practice identifying the themes...

In the second unit in a series of four, fifth and sixth graders learn about the difference between weather and climate. Scholars look at historical and recent climate data, regional and global trends, to understand that climate change...

The Big Climate Change Experiment begins with young scientists gaining background knowledge by watching news clips a video and examining cartoons. Next, learners view videos of witnesses who describe how climate change affects their...

Imagine a world powered by wind! The 19 lessons in this curriculum set provide young environmental scientists the information they need to imagine just that. The series begins with a lesson on the difference between forms of energy and...

Twenty-one Inquiry-based lessons provide young scientists with an opportunity to experiment with a variety of chemical reactions. Classroom investigators make observations, develop basic lab skills, and follow step-by-step instructions...

A 12-part social and emotional health unit is designed to help seventh graders develop the skills they need to cope with disappointment and manage stress. They practice stress reduction techniques and share ideas for how to handle...

Personal interest, strengths, talents, and abilities can be used to make a difference. Young learners consider how they can share their talents with others through volunteering, what they can do to take care of the natural environment,...

Forsooth! Here’s a collection that has everything you ever wanted to know about the theater and drama—everyone from Aristotle to Chikamatsu, from Moliere to Shakespeare to Williams. From Banraku to Zaju, every type from comedy to...

The 14 lessons in the AP Calculus AB Unit 6: Integration and Accumulation of Change use informative videos to introduce the topic of each lesson and model procedures. Each resource packet includes a video, worksheets, practice solutions,...

Flip your classroom and teach AP Calculus remotely! Unit 1 of the course focuses on limits and continuity. Informative videos introduce each lesson's topic, and the resource packets include worksheets, practice solutions, and two...

To begin Unit 9 in the Common Core Algebra I series, scholars view a video presentation on determining the greatest common factor for algebraic expressions. They see how to use factoring and the zero product property to solve polynomial...