Coordinate Grid Games

Geometry Game
Practice translations, reflections and rotations around a point on a shape with this game.  (note: anticlockwise is how the Brits and Aussies say counterclockwise)

Dilations Game
Practice dilations in this game.

Rotation around the Origin
This little game shows you what happens to points when you rotate them about the origin.

Integer Operations Games

Here are some games I found to help you practice integer (negative numbers) operations.  You may have to reload the page after playing them.

Here is a Jeopardy game with the rules for how to do integer operations.
http://www.math-play.com/Integers-Jeopardy/Integers-Jeopardy.html

Here is a game where you subtract integers
http://www.math-play.com/math-racing-subtracting-integers-game/math-racing-subtracting-integers-game.html
(You must reload after each play to play again)

Here is a similar one with adding integers
http://www.math-play.com/math-racing-adding-integers-game/math-racing-adding-integers-game.html

Here is a game about dividing and multiplying integers
http://www.math-play.com/multiplying-and-dividing-integers-game.html

Probability Vocabulary

Here is a list of vocabulary words for probability.

outcome - what happens as the result of a choice or event, for example, heads on a coin, or 6 on a number cube

desired outcome - the outcome you or the problem wants, for example, heads on a coin, or 6 on a number cube

total outcomes - the entire set of outcomes possible from the choice or event, for example, heads or tails on a coin, 1-6 on a number cube

sample space - another name for total outcomes, which usually holds outcomes for more than one event

event - the action that decides the outcome, for example, flipping a coin, rolling a number cube

probability - the chance the desired outcome has of happening, usually written in the theoretical by a ratio of desired outcomes to total outcomes

independent event - an event that is not changed by another event, such as flipping a coin or rolling a number cube

dependent event - an event that is changed by another event, such as having to reroll a number cube if you get a 1, or drawing from a bag of marbles after one has been taken out.  Dependent events typically have different total outcomes than independent events.

multiple independent events - when an event happens more than once, we multiply its probability.  So rolling a number cube, then rolling again, will have a 1/36 chance of getting 6 and another 6.

complement - outcomes other than a desired or specific outcome.  Anytime the word NOT is used, look for that outcome's complement.

experiment - causing an event to check the outcome.  Sometimes this is done to test the validity of the ratio for deviation (such as loaded dice).

percent chance - writing the ratio as a percent.

spinner - a probability device, usually a circle that has been divided into different colors or regions, with a needle attached that, when flicked, spins around the circle until it points to a region.  If the needle points to a dividing line, it is typically flicked again.

number cube - a cube with its faces labeled 1, 2, 3, 4, 5, and 6.  It is hidden from view, shufffled in the hand and then tossed onto the table.