Variables
This problem is typical of the earliest algebra problems that likely came out of India. It is interesting historically, and…
Read moreLet's do a little target practice with this spreadsheet projectile simulator, which will map out the flight path of an…
Read moreWhat is "x"? Or how do we represent variables and functions on spreadsheets? …
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Equations
Typical algebra courses start with equations and solving equations and then move to graphing and functions. We start with functions…
Read moreSolving systems of equations sometimes called simultaneous equations with graphs is simply a matter of finding out where they intersect.…
Read moreThis problem is typical of the earliest algebra problems that likely came out of India. It is interesting historically, and…
Read moreThis Lab introduces a method for solving or estimating the solution to an equation digitally that can be applied to…
Read moreWhat is "x"? Or how do we represent variables and functions on spreadsheets? …
Read more
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Introduction to Functions
Spreadsheets offer us a nearly unlimited ability to develop and learn from case studies using real world data. We will…
Read moreLinear functions are the most important family of functions. They pervade our everyday lives and our work. Their graph is…
Read moreThis problem is typical of the earliest algebra problems that likely came out of India. It is interesting historically, and…
Read more
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Functions
Parentheses are very important in spreadsheets because like all programming, spreadsheet formulas have to be very specific. A big formula,…
Read moreAnother famous pattern, Pascal’s triangle, is easy to construct and explore on spreadsheets. Create a formula for any cell that…
Read moreMost museums with math exhibits have a Pascal’s triangle made up of pegs with balls falling down between them and…
Read moreSpreadsheets offer us a nearly unlimited ability to develop and learn from case studies using real world data. We will…
Read moreWe look at world population over the past 60+ years and ask whether the earth’s population is growing faster or…
Read moreLinear functions are the most important family of functions. They pervade our everyday lives and our work. Their graph is…
Read moreTypical algebra courses start with equations and solving equations and then move to graphing and functions. We start with functions…
Read moreWhat does each of the coefficients do? How does it change the graph of the parabola. What does a do,…
Read moreAdding an exponent, sometimes referred to as a 'power', to the input variable of a linear function that passes through…
Read morePolynomial functions are not limited to the highest term and while that term is most important in determining the shape…
Read moreSpreadsheets are not limited to algebraic functions, they can also display trigonometric functions. We are modeling the sine function, but…
Read moreWe take that great old problem of the inventor of chess and the ruler of India and use it to…
Read moreThe rule of 72 is an old banker’s rule of thumb to find out how long it will take to…
Read moreSpreadsheets make it very easy to switch axes and add graphs. They enable students to play with what may have…
Read moreOne of the most powerful aspects of the mathematics of functions is our ability to treat them as abstract quantities…
Read moreSolving systems of equations sometimes called simultaneous equations with graphs is simply a matter of finding out where they intersect.…
Read moreCreate, manipulate, and explore triangles in this live interactive spreadsheet. On the surface, a triangle is being drawn on a…
Read moreWhich form of interest, simple or compound, is the fairest? If you were buying a house or a car which…
Read moreI built a Lab for you to play with the Syracuse Problem and to learn to use spreadsheets to play…
Read moreThis problem is typical of the earliest algebra problems that likely came out of India. It is interesting historically, and…
Read moreLet's do a little target practice with this spreadsheet projectile simulator, which will map out the flight path of an…
Read more1, 3, 6, 10... are called the triangular numbers because they can be stacked up to form a triangle. They…
Read moreIt was one of the most amazing visions of the future ever made. In 1965 Gordon Moore, one of the…
Read moreThe absolute value (ABS) function is the positive value of a number or quantity. Its graph has a very peculiar…
Read moreWhat would you guess the absolute value of a polynomial function would look like? Try some here. I think you…
Read moreGeorge is in New York and Martha is in Washington. They leave at the same time and follow the same…
Read moreWhat if you created a function where the exponent is a variable? As you might expect, this would be called…
Read moreGraphs as we know them were first invented by Galileo. They are powerful images of functions. I will introduce you…
Read moreWhat does a linear function look like when we interchange the inputs and outputs, that is make the x-axis the…
Read moreWe often see Lissajous figures in old sci-fi movies because they are so cool. As you play with them I…
Read moreThis Lab introduces a method for solving or estimating the solution to an equation digitally that can be applied to…
Read moreWhat is "x"? Or how do we represent variables and functions on spreadsheets? …
Read moreWhen I was young I loved to play with planetary data, to explore their patterns, to learn more about astronomy,…
Read moreParametric equations are powerful tools to model projectile motions and to graph things that are not functions like circle or…
Read moreThe GDP or Gross Domestic Product of a country is one measure of its wealth. What can this data tell…
Read moreThe variables in most of the functions we are used to working with vary directly, as one goes up the…
Read moreWhat if you made a series of unit fractions with the odd numbers as their denominator, added the first two…
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