Quia
Ixl Learning: Constant of Proportionality
Brush up on your math skills relating to the constant of proportionality then try some practice problems to test your understanding.
National Council of Teachers of Mathematics
Nctm: Illuminations: Pan Balance Expressions
Using this interactive tool, you can practice arithmetic and algebraic skills, and investigate the important concept of equivalence.
Math Warehouse
Math Warehouse: Limits in Calculus
Features numerous exercises relating to limits in calculus. Includes links, calculators, lessons, and worksheets.
Disfruta Las Matematicas
Disfruta Las Matematicas: Medida
This unit could be used as supplementary material for a topic on measurements. It has good examples with illustrations and some interactive activities.
Windstream
Ojk's Precalculus Study Page: Geometric Representation of Complex Numbers
An introduction to viewing the complex plane in terms of polar coordinates. Assumes knowledge of the conversion formulas. Includes several examples and pictures.
Wolfram Research
Wolfram Math World: Significant Digits
This site defines and describes significant digits along with examples. Includes references, citations, and links to further information.
Wolfram Research
Wolfram Math World: Dimension
This site from Mathworld.com provides information on what the dimension of an object means.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Numeros Complejos
Practice how to represent complex numbers graphically, operations with complex numbers and geometric transformations.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Complejos
In this unit you can practice interactively the concept of complex numbers in binomial and polar forms.
eFunda
Numerical Integration: Newton Cotes Formulas
Good site explaining the various methods for numerical integration.
Other
Austin Community College: Mathematical Language
Austin Community College provides a few paragraphs on mathematical language, the importance of learning it, and the importance of using it correctly.
Sophia Learning
Sophia: Reporting Volume Measurements: Lesson 2
This lesson will explain how to determine the precision of a measurement using laboratory glassware and report it accurately. It is 2 of 2 in the series titled "Reporting Volume Measurements."
Sophia Learning
Sophia: Significant Figures: Lesson 3
This lesson will explain what significant figures are and why they are important. It is 3 of 5 in the series titled "Significant Figures."
Sophia Learning
Sophia: Significant Figures: Lesson 5
This lesson will introduce significant figures and explain why they are important when doing calculations. It is 5 of 5 in the series titled "Significant Figures."
Sophia Learning
Sophia: Subtracting W/ Significant Figures: Lesson 2
This lesson should help a learner understand how to determine the appropriate amount of significant figures when subtracting numbers. It is 2 of 4 in the series titled "Subtracting w/ Significant Figures."
Sophia Learning
Sophia: Subtracting W/ Significant Figures: Lesson 4
This lesson should help a learner understand how to determine the appropriate amount of significant figures when subtracting numbers. It is 4 of 4 in the series titled "Subtracting w/ Significant Figures."
ClassFlow
Class Flow: Number Square Algebra
[Free Registration/Login Required] In this flipchart, students interact with whole numbers arranged in a square to apply their arithmetic skills of multiplication, addition and subtraction.
ClassFlow
Class Flow: Rounding
[Free Registration/Login Required] In this flipchart, students apply estimation strategies to predict or determine the reasonableness of answers in situations involving computation on rational numbers in various forms including whole...
Free Math Help
Free Math Help: Imaginary Numbers
The lesson investigates imaginary numbers. An explanation and sample exercises are provided.
Teaching Treasures Publications
Teaching Treasures: Year Eight Nine Math (Page 3)
This interactive worksheet focuses on math concepts such as algebra, measurement, geometry, problem solving, and number sense. Answers to questions are available immediately and can be printed. Help links are also available to learners...
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Significant Digits
Find a quick, concise explanation of significant digits. An example is given and clearly explained.
Math Is Fun
Math Is Fun: Metric System of Measurement
The metric system of measurement is explained. Particularly interesting is the table of prefixes for numbers that are exceptionally huge or small.
Shmoop University
Shmoop: Fractions & Decimals: Decimals
The mathematics resource introduces decimals as parts of a whole.
Shmoop University
Shmoop: Fractions & Decimals: Place Value & Naming Decimals
The mathematics notes investigate decimal place value. Examples and practice problems with solutions are included.