number-line
Resources
PhET: Number Line: Integers
What do elevation, account balances, and temperature have in common? They can all be represented on a number line. Compare integers on a number line and in an inequality statement. Discover the meaning of absolute value.
PhET: Number Line: Operations
Explore operations with integers using an authentic context of net worth, then generalize with a number line. Experiment with adding and subtracting both positives and negatives, and make predictions about whether the total will be positive or negative.
PhET: Number Line: Distance
Subtraction is more than an operation- it is also the distance between two numbers! Explore the distance between a person and house, a bird and a fish, and the difference in temperature between two locations. Compare absolute distance and directed distance, and strengthen your number line muscles.
PhET: Fractions: Intro
Explore fractions while you help yourself to 1/3 of a chocolate cake and wash it down with 1/2 a glass of water! Create your own fractions using fun interactive objects. Match shapes and numbers to earn stars in the fractions game. Challenge yourself on any level you like. Try to collect lots of stars!