Khan Academy Nonprofit – Free Online Educational Videos

Here is a great resource for teachers and students!  Khan Academy, a nonprofit global classroom for anyone in the world who has access to a computer, has a library of over 3,200 videos online that are free.   This provides quality instruction to areas all over the world, no matter where they are located. They also offer Teacher Resources as well.  Here is an example of some of the topics they cover:

ALGEBRA (many lessons in each of these subtopics):

  • Algebra Intro
  • Linear Equations
  • Inequalities
  • Rations & Proportions
  • Absolute Value
  • Exponents and Radicals
  • Logarithms
  • Polynomials
  • Quadratics
  • Functions
  • Conic Sections
  • Complex Numbers
  • Matrices

It’s easy to see by this listing that there are many lessons from which to choose.  Here is a partial list of more topics without subtopics listed:

  • American Civics
  • Arithmetic & Pre-Algebra
  • Art History (for many different eras)
  • Astrology
  • Banking & Money
  • Biology
  • Brain Teasers
  • Cryptography
  • Calculus
  • Chemistry
  • Differential Equations
  • Economics
  • Finance
  • Geometry
  • Healthcare & Medicine
  • History
  • Physics
  • Statistics
  • Trigonometry
  • Computer Science

Khan Academy is a global classroom of students who learn at their own rate and choose what they want to study.  Here are reviews and stories of the academy so you can read first hand from teachers and students all over the world.

Teaching Patterns to Young Children

A very simple, inexpensive way to start out teaching young children patterns would be to have three different colors of caps from gallon containers of milk or water.  Have several of each color.  If you don’t have the caps, then cut out circles out of colored cardboard.  Start with a very simple pattern and then make it progressively harder.  Start out demonstrating the whole pattern at first, showing how to duplicate the pattern to make sure the child understands the concept of “pattern.”  Then see if the child can duplicate it.  For example:

  • Red, blue, red, blue, red, blue, ____, ____, ____, ____, ____, ____
  • Red, green, red, green, red, green, ____, ____, ____, ____, ____
  • Red, blue, blue, red, blue, blue, ____, ____, ____, ____, ____, ____
  • Red, red, blue, red, red, blue, ____, ____, ____, ____, ____, ____
  • Red, blue, green, red, blue, green, ____, ____, ____, ____, ____
  • Red, green, green, blue, red, green, green, blue, ____, ____, ____, ____, ____, ____, ____, ____

As the child masters each level, have more complicated patterns.

Then add in two dimensions of color and shape:

  • red circle, blue square, red circle, blue square
  • red circle, green square, blue triangle, red circle, green square, blue triangle

As the child progresses, make patterns out of stickers (excellent way to make patterns) and other things besides color and shapes. Or you can use game pieces if you have multiple pieces that are the same. You could even use cans of green beans, corn, and tomatoes. Be creative and look around your house.