Stacie

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So far Stacie Bender has created 78 blog entries.

Equations from Data

When businesses, governments and other policy makers prepare to make decisions, they often look at data to find trends. In this activity, we will use data and a graphing calculator, Desmos, or Geogebra to find an equation that best fits the data points. Statista has Global Apple iPod sales (in million units). Plot the data [...]

By | 2018-09-24T20:39:28+00:00 September 25th, 2016|Graphing Calculator, PreCalculus, Statistics|0 Comments

Find an equation of best fit in Geogebra

Go to Geogebra.org. Click on Geogebra Math Apps. Choose Spreadsheet. Enter your data in the spreadsheet. Click in the graph area, then right click and choose Graphics. In the Basic tab, change your x- and y- mins and maxes to represent your data points. Click on the Grid tab and Show Grid if you want. [...]

By | 2017-11-13T22:01:55+00:00 September 24th, 2016|Graphing Calculator, PreCalculus, Statistics|0 Comments

Finding an equation of best fit in Desmos

Go to Desmos.com and choose Start Graphing. In the upper left, choose Add Item > table. Type your data in the table. Click on the wrench in the upper right to change the graph settings. Modify your x, and y values to reflect your data. Decide what type of equation the data represents. In the example [...]

By | 2017-11-13T22:01:55+00:00 September 24th, 2016|Uncategorized|0 Comments

Functions and their Graphs

Reviewing Parent Functions In Pre-Calculus class we dove right in and reviewed five of our parent functions. Screen shots of Reviewing Parent Functions Geogebra Activity are shown below. I will likely rework it next year to include a slider for a variable "b" that reflects across the y-axis and horizontally stretches/shrinks the graph. I made [...]

By | 2017-11-13T22:01:56+00:00 September 5th, 2016|PreCalculus|0 Comments

Polynomial and Rational Functions

Polynomial Functions Pre-Calculus has a heavy emphasis on learning how to graph various functions. The Polynomial Functions Exploration is one strategy for learning how various functions behave based on the sign of their leading coefficient and the highest power of the polynomial. I find that my students remember functions ending behavior better when they discover [...]

By | 2017-11-13T22:01:56+00:00 September 2nd, 2016|PreCalculus|0 Comments

Midpoint

One frustration I encountered last year in my geometry classes involved the Distance and Midpoint formulas. Our text book and I made the assumption that since my students had worked with these formulas, they would remember them and could use them. We encountered problems throughout the book that required the use of both formulas and I [...]

By | 2016-08-25T17:51:19+00:00 July 26th, 2016|Geometry|0 Comments

Circumference, Area, and Volume

Below are links to notes sheets for circumference, area of circles and polygons, and 3-D solids. The cover lateral and surface area, and volume. Areas of Circles and Sectors Notes Sheet 3-Dimensional Figures Notes Prisms: Surface Area & Volume Notes Cylinder: Surface Area & Volume Notes Pyramids and Cones Notes Sheet Formulas Reference Sheet   [...]

By | 2017-11-13T22:01:56+00:00 May 10th, 2016|Geometry|0 Comments