Purple Math
Purplemath: Practical Algebra Lessons
Pre-algebra and algebra lessons, from negative numbers through pre-calculus. Grouped by level of study. Lessons are practical in nature informal in tone, and contain many worked examples and warnings about problem areas and probable...
Shmoop University
Shmoop: Basic Statistics & Probability: And vs. or Probability
The mathematics resource investigates probability using "and" and "or". Students learn about the topics through notes and examples. The tutorial consists of practice exercises to check for comprehension of the concepts.
Other
Ohio Department of Education: Fifth Grade Achievement Test (Practice Test) [Pdf]
Half-length practice test for the third grade OAT (Ohio Achievement Test). The test includes 17 multiple-choice and 3 open-response question dealing with topics such as measurement (unit conversion, time), geometry (volume, area), data...
Other
Ode: Seventh Grade Achievement Test (Practice Test) [Pdf]
Half-length practice test for the third grade OAT (Ohio Achievement Test). The test includes 17 multiple-choice and 4 open-response questions dealing with topics such as number sense (order of operations, ratios), measurement (metric...
Math Planet
Math Planet: The Mean, the Median, and the Mode
Gain an understanding of how to find the mean, median and mode by viewing examples and a video lesson. [2:22]
Math Planet
Math Planet: Combinations and Permutations
Gain an understanding of combinations and permutations by viewing an example and a video lesson. [1:15]
National Council of Teachers of Mathematics
Nctm: Standards for School Mathematics
This standards-based NCTM website offers resources for teachers of mathematics for all grade levels, including interactive math tools, lesson plans, online resources, and the like.
Math Planet
Math Planet: Stem and Leaf Plots and Box and Whiskers Plot
Discover how to use stem-and-leaf plots and box-and-whisker plots to visualize data by taking a look at examples and a video lesson.
Math Planet
Math Planet: Calculating the Outcome
Gain an understanding of how to calculate the outcome using a tree-diagram by viewing an example and a video lesson.