Square Roots & the Pythagorean Theorem
Repeating Decimals and Fractions
Khan Academy’s Repeating Decimals Videos
A list of videos that explain how to write fractions for repeating decimals.
Hot Math’s Converting Decimals to Fractions
Shows how to convert a repeating decimal into a fraction.
Square Roots & Cube Roots
Khan Academy’s Square Roots and Cube Roots
A list of videos that explain how to work with square roots and cube roots.
Math.com’s Square Roots
A lesson on what square roots are and how to calculate them.
The Math Page – Simplifying Radicals
Gives a lesson and some practice on simplifying square roots.
Rational & Irrational Numbers
Khan Academy’s Irrational Numbers
A list of videos that explain irrational numbers.
Khan Academy’s Approximating Irrational Numbers
A list of videos that explain how to approximate the value of and compare irrational numbers.
Fact Monster’s Rational and Irrational Numbers
Good explanation on what rational and irrational numbers are!
Math Is Fun Rational and Irrational Numbers
Another good explanation on what rational and irrational numbers are!
Working on a Coordinate Grid
Regents Exam Prep’s Areas on a Coordinate Grid
A lesson on finding the areas of shapes on a coordinate grid.
The Pythagorean Theorem
Khan Academy’s Pythagorean Theorem
A list of videos that explain how to work with the Pythagorean Theorem.
Khan Academy’s Proofs of the Pythagorean Theorem
A list of videos that explain proofs of the Pythagorean Theorem.
Math.com’s Pythagorean Theorem Tutorial
A lesson on the Pythagorean Theorem and how to use it.
About.com’s Pythagorean Theorem Tutorial
Another lesson on the Pythagorean Theorem and how to use it.
Online Math Learning on 454590 Triangles
Some information on the special properties of 454590 triangles.
Regents Prep on 454590 Triangles
Some information on the special properties of 454590 triangles.
Online Math Learning on 306090 Triangles
Some information on the special properties of 306090 triangles.
The Math Page on 306090 Triangles
More information on the special properties of 306090 triangles.
Regents Prep on 306090 Triangles
Some information on the special properties of 306090 triangles.
Volume and Surface Area
Mr. Ohashi’s Surface Area and Volume Tutorial
A tutorial I designed on finding the surface area and volume, the way we do it in class!
Khan Academy’s Volume
A list of videos the explain how to find the volume of various solids
Math.com’s Area Formulas
Formulas for areas of shapes.
Regents Exam Prep’s Area of Polygons
A good reference for the area formulas for different shapes
Math.com’s Prism Tutorial
A lesson on what a prism is and how to find volumes of prisms.
Math.com’s Pyramid Tutorial
A lesson on what a pyramid is and how to find volumes of pyramids.
Math.com’s Cylinders, Cones, and Spheres Tutorial
A lesson on what these objects are and how to find their volumes.
