Is 0.56 stronger than -0.78? Interpret the correlation coefficient as the strength and direction of a linear relationship between two variables. An algebra lesson introduces the correlation coefficient by estimating and then...

Slide the coefficients to determine sums of polynomials. The interactive contains sliders to change the coefficients of an addend in a polynomial addition problem. Pupils determine the coefficients of the addend to arrive at particular...

Determine how close the line is to the scatter plot. Clear video instruction shows how to plot a scatter plot and find the best fit line using the linear regression function on a calculator. Pupils use the information from the calculator...

Learners demonstrate their ability to operate with rational numbers through a five-question assessment that includes questions ranging from simple operations with integers to solving two-step equations with rational coefficients.

Determine which way to go. Pupils learn how the leading term determines the end behavior of a polynomial function. They see how to use the end behavior of a polynomial to identify the graph of the function before practicing their skills...

So many rules and so little time. Make it easy and provide all the exponent and radical rules in one place as an easy reference guide. All of the properties come with several examples to show how the rules apply to different problems. 

Reinforce math vocabulary with a set of flash cards. Forty-eight cards offer boldly printed words, and their corresponding definition alongside an example with labels. Terms include absolute value, inverse operations, slope, and more! 

Your AP Calculus learners probably have their ID numbers memorized, but have they tried graphing them? Pique your pupils' interest by asking each to create a unique polynomial function based on their ID numbers, and then analyze the...

Four questions that get right to the polynomial point. High schoolers list all the attributes of a polynomial function, including finding all complex zeros. The last two questions prompt them to write a function based on the given...

Practice combining like terms with negative coefficients.

Practice problems combining like terms with negative coefficients and distribution.

A practice quiz on combining like terms where there are negative coefficients. Includes hints.

A practice quiz on combining like terms where there are negative coefficients. Includes hints.

Practice combining like terms using the distributive property. These problems involve adding and subtracting negative numbers.

Practice combining like terms using the distributive property. These problems involve adding and subtracting negative numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...

Practice evaluating expressions using the order of operations. Numbers used in these problems may be negative. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Simplify algebraic expressions by combining like terms. Coefficients on some terms are negative. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

This is a tutorial site explaining different types of graphs of exponential functions.