In this lesson, students are given a budget of $500 to spend. They will use the shopping excursion to learn about fractions, decimals, and percents and use proportional relationships to solve multi-step ration and percent problems.

For this lesson, students know that the long division algorithm is the basic skill to get division-with-remainder and the decimal expansion of a number in general. Students know why digits repeat in terms of the algorithm. Students know that every rational number has a decimal expansion that repeats eventually.

For this activity, students use art to use the Pythagorean theorem and to understand irrational numbers.

Students will learn about the twin STEREO spacecraft and how they are being used to track solar storms through reading a NASA press release and viewing a NASA eClips video segment. Then students will examine data to learn more about the frequency and speed of solar storms traveling from the Sun to Earth. This activity is part of the Space Math multimedia modules that integrate NASA press releases, NASA archival video, and mathematics problems targeted at specific math standards commonly encountered in middle school textbooks. The modules cover specific math topics at multiple levels of difficulty with real-world data and use the 5E instructional sequence.

Students must survive by collecting all rational numbers, avoiding all irrational numbers and killing all cells infected by an irrational number. Also, the students must avoid the shots from the Pi Amoeba, the most deadly of all irrational foes!

Students will participate in an activity that will help them obtain a feeling of how numbers are related to each other. They will determine whether a number is rational or irrational. Students will also be able to order rational and irrational numbers on a number line.

This lesson unit is intended to help teachers assess how well students are able to: translate between decimal and fraction notation, particularly when the decimals are repeating; create and solve simple linear equations to find the fractional equivalent of a repeating decimal; and understand the effect of multiplying a decimal by a power of 10.

The purpose of this task is to understand, in some concrete cases, why terminating decimal numbers can also be written as repeating decimals where the repeating part is all 9's.

This course was created by the Rethink Education Content Development Team in partnership with the North Carolina Virtual Public Schools. This course is aligned to the NC Standards for 8th Grade Math. 

This course was created by the Rethink Education Content Development Team in partnership with the North Carolina Virtual Public Schools. This course is aligned to the NC Standards for 8th Grade Math. 

This course was created by the Rethink Education Content Development Team in partnership with the North Carolina Virtual Public Schools. This course is aligned to the NC Standards for 8th Grade Math. 

In this lesson, student find the square root of small perfect squares and approximate the location of square roots on the number line.

This lesson unit is intended to help you assess how well students are able to:

* Translate between decimal and fraction notation, particularly when the decimals are repeating.
* Create and solve simple linear equations to find the fractional equivalent of a repeating decimal.
* Understand the effect of multiplying a decimal by a power of 10.

In this activity, you will be given a series of numbers that you will need to sort by type (whole, integers, rational, real, etc.). 

For this lesson, students use rational approximations of irrational numbers to compare the size of irrational numbers. Students place irrational numbers in their approximate locations on a number line.

For this lesson, students apply the method of rational approximation to determine the decimal expansion of a fraction. Students relate the method of rational approximation to the long division algorithm.

For this lesson, students use rational approximation to get the approximate decimal expansion of numbers like the square root of 3 and the square root of 28. Students distinguish between rational and irrational numbers based on decimal expansions.

For this lesson, students apply knowledge of equivalent fractions, long division, and the distributive property to write the decimal expansion of fractions.