Curated OER
Decimals and Percents
In this decimals and percents worksheet, 8th graders solve 26 different types of problems that include expressing numbers as a decimal and a percent. Then they change each number to fractions and determine the unknown number for each...
Curated OER
Decimals
In this decimals worksheet, 5th graders solve 20 different problems that include adding and subtracting various decimals. First, they add or subtract the decimals like they would whole numbers. Then, students line up the decimal points...
Curated OER
Standard Form and Scientific Notation
In this standard form and scientific notation worksheet, 9th graders solve 10 different problems that include converting numbers and equations. First, they place the decimal point so there is one non-zero digit to the left of the decimal...
Curated OER
Scientific Notation
In this scientific notation learning exercise, 9th graders solve 10 different equations that include writing the scientific notation for each problem. First, they place the decimal point in each problem after the first digit and drop the...
Curated OER
Regression Analysis
In this regression analysis instructional activity, 9th graders solve 10 different word problems related to regression analysis. First, they use the information given to find a suitable function to model the data. Then, students use the...
Curated OER
Irrational Numbers
In this irrational numbers worksheet, 9th graders solve 10 different problems that include determining the approximations of various irrational numbers. First, they solve each irrational number in the first set to the nearest tenth....
PBS
Pbs Learning Media: How Far to Wells Road?
In this Cyberchase video segment, Bianca drives to visit her friend, but learns that she has incorrectly added decimal amounts, so she ends up at the wrong location.
PBS
Pbs Learning Media: How Many Rails for the Detour?
The CyberSquad adds decimals to figure out how many rails they need to build a detour that will help them go around a mountain in this Cyberchase video segment.
The Math League
The Math League: Percent & Probability
This tutorial gives definitions and examples of percents and probability and covers percent as a fraction and percent as a decimal.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Percents Are Ratios
This Math Page tutorial explains how percents are ratios and then features a practice exercise.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Multiplying and Dividing by Powers of 10: The Meaning of Percent
This excellent math resource explains and defines the meaning of percent. Multiplying and dividing by a power of 10 is incorporated as a preview to understanding scientific notation.