Algebra 376 listings
youcubed: What Would the Nautilus Say? (6-CC)
youcubed (Stanford University)

While the nautilus shell is often represented in popular culture as an example of a golden spiral, according to many mathematicians it is not.

youcubed: Maths and Art
youcubed (Stanford University)

Mathematics and art intersect in our world in beautiful ways.

youcubed: Reduce, Reuse, Geometry (3-12)
youcubed (Stanford University)

Intersecting a 3D shape and a plane might seem intimidating, but a few bottles, a box cutter, and some creativity can give us some insight into what it can look like.

youcubed: Counting All The Things
youcubed (Stanford University)

In this activity explore ways of counting large amounts of flowers, trees, birds, people, and more in spaces and places you go.

youcubed: Sidewalk Line Dance (K-8)
youcubed (Stanford University)

This is a fun sidewalk chalk activity that gets everyone moving and having interesting conversations about numbers!

Khan Academy: Pre-Algebra
Khan Academy

Learn pre-algebra—all of the basic arithmetic and geometry skills needed for algebra.

Khan Academy: Algebra Basics
Khan Academy

Course summary. Foundations. Algebraic expressions. Linear equations and inequalities. Graphing lines and slope. Systems of equations. Expressions with exponents. Quadratics and polynomials.

Khan Academy: Algebra 1
Khan Academy

The Algebra 1 course, often taught in the 9th grade, covers Linear equations, inequalities, functions, and graphs, Systems of equations and inequalities, and more.

Khan Academy: Algebra 2
Khan Academy

Course summary:  Polynomial arithmetic · Complex numbers · Polynomial factorization · Polynomial division · Polynomial graphs · Rational exponents and more.

Khan Academy: Linear Algebra
Khan Academy

Learn linear algebra for free—vectors, matrices, transformations, and more.

NRICH: Diamond Collector
NRICH (University of Cambridge)

Try to collect as many diamonds as you can!

NRICH: Finding Factors
NRICH (University of Cambridge)

By revealing some of the answers, can you work out what each heading must be?

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