Math Is Fun
Math Is Fun: Nth Roots
The learning activity examines the nth root. The resource consists of operations, examples, and properties of the nth root.
Goodwill
Gcf Global: Simplifying Expressions
In this tutorial, students learn how to simplify algebraic expressions.
CK-12 Foundation
Ck 12: Algebra: Checking Solutions to Inequalities
[Free Registration/Login may be required to access all resource tools.] This lesson covers graphing and solving basic inequalities. Students watch a video tutorial, explore guided notes and attempt practice problems.
Interactive Mathematics
Interactive Mathematics: Integers: Negative Numbers
Explore the world of negative numbers as you look at their relationship to positive numbers, integers, absolute value and more. Test your knowledge using he exercises and games provided.
Curated OER
Unesco: Slovenia: Heritage of Mercury. Almaden and Idrija
The property includes the mining sites of Almaden (Spain), where mercury (quicksilver) has been extracted since antiquity, and Idrija (Slovenia), where mercury was first found in AD1490. The Spanish property includes buildings relating...
Curated OER
Wikipedia: National Historic Landmarks in Kansas: Fort Larned
From 1860 until 1878, this was the most important fort guarding the northern portion of the Santa Fe Trail. Abandoned, the fort became private property and the center of a large ranching operation. It has been restored to the 1860s...
Curated OER
Wikipedia: Natl Historic Landmarks in Ma: William Cullen Bryant Homestead
This property was the boyhood home and later summer residence of poet and newspaper editor William Cullen Bryant (1794-1878). It is now owned by The Trustees of Reservations and operated as a house museum.
Other
Lesson Plan Mental and Written Multiplication Algorithms
This lesson plan offers a variety of algorithms and systematic errors that occur in written multiplication problems.
CK-12 Foundation
Ck 12: Arithmetic: Decimals as Fractions
[Free Registration/Login may be required to access all resource tools.] Write given decimal values in fraction form.