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"Get the Lead Out" extends the study of exponential functions and can be used to introduce the use of logarithms to "un-do" exponential expressions in solving equations.
"So Much Coffee, So Little Time" can be used at the Intermediate Algebra level to help students see the value of "solving systems of linear equations".
2 days. Hands-on activity using the actual path of light through your container of water.

2 days. Hands-on simulation activity. Used to introduce solving linear systems of 2 equations in two unknowns, with follow-up involving 3 equations and 3 unknowns.

Students use the internet to research values relevant to projectile motion such as acceleration due to gravity and the height of objects.
Students learn to develop the equation for a line. The emphasis is on the significance of the slope and the $y$-intercept.
A hands-on activity to help students understand four basic binary operations in algebraic expressions, solving linear equations in one variable, and solving a formula for an indicated variable, us
The second part of the Money Investigation activities.
Hands-on activity. Plotting points, writing linear functions algebraically, relating slope and $y$-intercept to context. Compares value of coins in different piles.