- MCC8.NS.1: Know that numbers that are not rational are called irrational. Understand informally that every number has a decimal expansion; for rational numbers show that the decimal expansion repeats eventually, and convert a decimal expansion which repeats eventually into a rational number.
- MCC8.NS.2: Use rational approximations of irrational numbers to compare the size of irrational numbers, locate them approximately on a number line diagram, and estimate the value of expressions(e.g., π 2). For example, by truncating the decimal expansion of √2 (square root of 2),show that √2 is between 1 and 2,then between 1.4 and 1.5, and explain howto continue on to get better approximations.
- MCC8.EE.2: Use square root and cube root symbols to represent solutions to equations of the form x^2= p and x^3 =p, where p is a positive rational number. Evaluate square roots of small perfect squares and cube roots of small perfect cubes. Know that √2 is irrational.
Resources:
- SMART Board Lesson "Prime and Composite Numbers"
- BrainPop lessons- Prime Numbers and Square Numbers (www.brainpop.com)
- Pre-Algebra: An Integrated Transition to Algebra and Geometry by Glencore/McGraw-Hill
- Article "Don't be a Square Teacher" (http://voices.yahoo.com/dont-square-teacher-fun-teaching-perfect-3927628.html?cat=4)
Students will also be engaged through various multimedia resources:
- http://www.mathsisfun.com/square-root.html
- http://mrsklipfelstopteachingtips.blogspot.com/2012/11/prime-composite-and-square-numbers.html
- http://www.sheppardsoftware.com/mathgames/monkeydrive/numbers/MDPrimeNumbers.htm
- http://www.coolmath.com/prealgebra/00-factors-primes/
- http://www.quia.com/ba/9062.html
- http://www.maths.com/numbers.square.html
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