Recently my good friend Joey Shavelle of Jolo Studios put some additional functionality into two of our statistical simulators. For the sample mean simulator he added code that calculates the mean of the means and the standard deviation of the means. Here’s what it looks like when I had a population mean of 127, a standard deviation of 32, and a sample size of 50 with 1000 simulations: (Click on the image to see it… Read more »
Month: April 2016
New CC Algebra II Statistics Videos – by Kirk
Posted onA few weeks back, I published three new lessons to go with our final unit in Common Core Algebra II – Statistics. These lessons extended the work that we began in inferential statistics by introducing more formal ways of finding variation within sample statistics, such as sample means and proportions. By continuing to use simulation, we introduce students to the Central Limit Theorem for both sample means and sample proportions and extend this to a… Read more »
Google Sheets for CC Alg II Statistical Simulation – by Kirk
Posted onAs many of you know eMATHinstruction offers online apps for performing the statistical simulations required in Common Core Algebra II. You can find links to those simulators at this post of mine: Statistical Simulations and Inferential Statistics – by Kirk The simulators work like a charm and I explain how to use them as well as how to use our TI based calculator programs in this YouTube video: YouTube – Statistical Simulation Programs from eMATHinstruction… Read more »
Protected: CC Algebra II – 3rd Quarter Exam – by James Sposato
Posted onCC Alg II – Polynomial Functions and Their Graphs – by Brett Widman
Posted onOur long time friend Brett Widman from West Seneca sent us a great review packet on polynomial functions and their corresponding graphs. We have all seen in the sample problems the clear emphasis on the connection between the equations of these polynomials and their zeros. Brett’s problem set does a great job reviewing this. Here it is!!! Algebra 2 Writing Polynomial Equations Thanks Brett for this really great contribution.
1-Var Stat Summary on the TI-83/84 – by Aimee Campagnola
Posted onOur good friend Aimee Campagnola from the Three Villages School District gave us a hand little reference for the one variable statistics option on the TI-83/84, especially how it links in to creating box plots. As we all know, these button pushing procedures on the calculators can be tough for kids to remember, and this is a great guide on how to do it. She sent both the filled in version and a blank version,… Read more »
New Structure – New Products
Posted onStarting around Memorial Day, eMATHinstruction is going to change how we distribute our answer keys and what services we provide. This is all part of my evolution into working full time on eMATHinstruction as well as the evolution of our company. We are going to move to a Web based membership service for our answer keys plus some additional new material. The lessons and homework sets will remain on our site free to all who… Read more »
Simulation and Inferential Statistics – by Kirk
Posted onSo, I’ve made quite a few posts lately because we are near the time when teachers will be working through the very confusing topic of inferential statistics in Common Core Algebra II. With so little guidance from NYSED on the matter, we are left to sift through sample problems, standards, and (ugh!) the Modules. Ultimately, inferential statistics is a topic that is much, much too large to simply squish into Algebra II. If anything, the… Read more »