Dobbins Middle School - 8th Grade Math

Welcome to my 8th grade math blog.


It will serve as my primary means of keeping you informed about your child's math class. I encourage you to visit often to stay abreast as we move through the 8th grade Common Core Georgia Performance Standards (CCGPS).



Tuesday, January 22, 2013

Week at a Glance: January 21, 2012

This week in math, we will finish the Pythagorean Theorem unit. I decided to spend one more week on this unit to provide some additional practice for the students. The unit assessment will be on Friday, January 25. Students will be assessed on their understanding and ability to apply the Pythagorean Theorem. They should be able to do the following:

Demonstrate an understanding that the Pythagorean Theorem is a statement about the areas of squares off of the legs and hypotenuse of a right triangle.

Use the Pythagorean Theorem to find a missing side length (leg or hypotenuse) of a right triangle.

Demonstrate an understanding of the relationship between the area of a square and its side length.
 -- side = square root of area

Find the square root of perfect squares and estimate the square root of non perfect squares.

Use the Pythagorean Theorem to find distances (or lengths) in a coordinate grid.

Use the Pythagorean Theorem (converse) to determine if a given set of side lengths could form a right triangle.

Apply the Pythagorean Theorem to solve problems.

Distinguish between rational and irrational numbers.


The link below is to a website that has some helpful information about the Pythagorean Theorem.

http://www.mathsisfun.com/pythagoras.html