University of Saskatchewan (Canada)
University of Saskatchewan: Trigonometric Identities
The University of Saskatchewan provides an explanation of trigonometric identities, including the reciprocal identities, the addition and subtraction formulas with sine and cosine, and the double angle formulas. There are links to...
Teachnology
Teachnology: Arithmetic Theme
Arithmetic Theme provides an excellent collection of free sample worksheets, teacher resources, lesson plans and interactive media to support addition, subtraction, multiplication and division.
Teachnology
Teachnology: Arithmetic Theme
Arithmetic Theme provides an excellent collection of free sample worksheets, teacher resources, lesson plans and interactive media to support addition, subtraction, multiplication and division.
That Quiz
That Quiz: Practice Test: Arithmetic
Test your arithmetic skills in addition, subtraction, multiplication and division problems. There are 13 levels and the test may be taken with or without a timer.
Scholastic
Scholastic: Math Maven's Mysteries: The Case of the Hatcher Hotel Heist
Help Math Maven solve this mystery! Items are missing from several hotel rooms, but some addition and subtraction clues have been left behind. Use your skills to figure out where the thief will strike next!
National Endowment for the Humanities
Neh: Edsit Ement: Reading Writing & 'Rithmetic in the One Room Schoolhouse
Comparing and contrasting are skills that are utilized in this lesson plan. Teacher resources and detailed activities will help the students learn about the schools in early America.
Math2
Math2: Multiplication Table
This site contains links to games, tricks, and tips for learning multiplication facts. Spanish version can be found on the homepage.
AAA Math
Aaa Math: Fraction Parts Tenths
This lesson describes tenths and gives practices and games identifying various amounts of tenths.
University of Georgia
University of Georgia: Slope of Lines
This site provides a detailed unit on finding the slope of lines that investigates methods for solving systems of equations. Good lesson plan for class.
University of Vienna (Austria)
University of Vienna: Arithmetic or Geometric?
Interactive quiz in which the first few terms of a sequence are given, which then must be identified as an arithmetic or geometric sequence. After completion, the site returns a score to judge understanding of the different types of...
Other
Link to Learning: Number Sense and Numeration
Link to Learning is a site popular among Ontario teachers. This collection of sites addresses Number Sense and Numeration expectations in the Ontario Math curriculum for Kindergarten to Grade 8.
Other
Link to Learning: Number Sense and Numeration
Link to Learning is a site popular among Ontario teachers. This collection of sites addresses Number Sense and Numeration expectations in the Ontario Math curriculum for Kindergarten to Grade 8.
Clark University
Clark University: Dave's Short Trig Course
This Clark University trigonometry tutorial site features questions and answers about what students can learn from trigonometry.
Other
Dans Math: Lessons: Basic Skills Topics
If you're looking for a short review of the basic skills needed for arithmetic, prealgebra, and beginning algebra, this could be the site for you. Dan Bach, who teaches mathematics at Diablo Valley College in California, provides brief...
Cut the Knot
Cut the Knot: 3 Glasses Puzzle
Challenge students to a well-known riddle involving three different-sized glasses, some water, and a goal of a certain amount to be measured out. At this site, students can actually "pour" the water back and forth to solve the problem.
ReadWriteThink
Read Write Think: Draw a Math Story From the Concrete to the Symbolic
Contains plans for four cross-curricular lessons that ask learners to write simple addition and subtraction stories after reading a number of models. In addition to objectives and standards, this instructional plan contains links to PDF...
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Arithmetic
This interactive simulation allows learners to drill the multiplication tables. This activity will also provide a good understanding of factoring and dividing.
United Nations
Unesco: Math Games (In Arabic)
This site offers games and lessons that teach basic math concepts such as area and volume, number patterns, time, etc. Games use familiar tasks such as shopping to reinforce math concepts. While the title of each page includes an English...
Oak Ridge National Laboratory
Ornl: 7 Gaussian Elimination on Band Matrices
This site gives an example of solving a system of equations with the use of Gaussian Elimination.
Mangahigh
Mangahigh: Algebra: Find the Nth Term of a Linear Sequence
Students explore an interactive tutorial on linear sequences and then practice their knowledge by attempting ten questions that increase in difficulty level.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Elementary Addition
This resource offers six brief arithmetic lessons: sums less than ten, sums of ten, and sums between ten and twenty, doubling, zero, and a set of general practice problems.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Multiply Fractions
This Math Page tutorial explains how to multiply a number by a fraction or a mixed number and then features a practice exercise.
Tour Egypt
Tour Egypt: The Ancient Egyptian Number System
This Tour Egypt site presents an easy-to-read account of ancient Egypt mathematics. Content explores the history and development of mathematics, how it was used, what helpful documents we have found that give us insight into what the...
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Fractions Into Decimals
This Math Page tutorial explains how to change a fraction to a decimal and features a practice section at the end of the lesson.