## New Free iBookDecember 6, 2013

Posted by Media4Math in algebra, geometry, graphing calculators, math, media.
Tags: , Do you have an iPad or other IOS device? Do you have a Mac? Now you can download our free iBook, which gives a complete overview of our Media4Math+ Subscription service.

## Video: Linear Equations in Standard FormDecember 5, 2013

Posted by Media4Math in algebra, graphing calculators, math.
Tags: , , , ,

See a video version of our Brief Review PowerPoint. This Review focuses on Linear Equations in Standard Form.

## Brief Review: Linear Equations in Standard FormDecember 4, 2013

Posted by Media4Math in algebra, graphing calculators, math, media.
Tags: , , ,

We just posted a Brief Review PowerPoint on linear equations in Standard Form. While a lot of focus is rightly placed on linear functions in slope intercept form, the standard form is sometimes where such an equation starts. Click here to see the PowerPoint on Media4Math+.
In our Brief Review we go through a worked example showing how to derive the Standard Form equation and how to convert it to Slope Intercept form. In the process we use our Math Solver.
We provide a SlideShare version of this PowerPoint here.

## Tutorials for the TI-Nspire iPad AppOctober 8, 2013

Posted by Media4Math in algebra, geometry, graphing calculators, math, media.
Tags: , , , , ,

We’re pleased to announce the release of our first collection of tutorials exclusively for the TI-Nspire iPad App. These PowerPoint-based tutorials walk you through the use of the App. As with our other tutorials, we focus on math concept development, not just button pushing.

The new iPad App has all the functionality of the handheld, but with a very different interface. These tutorials will walk you through that.

The first batch of tutorials cover these topics:

• Graphs of Inequalities
• Graphing a Scatterplot
• Graphs of Absolute Value Functions
• Graphs of Inequalities with Sliders
• Graphs of Linear Functions
• Graphs of Quadratic Functions in Standard Form with Sliders
• Graphs of Quadratic Functions in Vertex Form with Sliders
• Parallel and Perpendicular Lines
• Point-Slope Form
• Slope Formula
• Slope-Intercept Form with Sliders

We reproduce them here as Slideshare Presentations:

## Have You Used the TI-Nspire App?August 20, 2013

Posted by Media4Math in algebra, geometry, graphing calculators, math, media. For those who use the TI-Nspire handheld, have you made the transition to the iPad app version? In this article we’ll look at some of the basics of using the App, using your knowledge of the handheld. (Media4Math+ has a library of video resources for the TI-Nspire, and we’ll be adding support for the Nspire App.)

 Handheld App When you create a new TNS document, you’ll see this screen. When you create a new TNS document, you’ll see this screen. Let’s create a Calculator Window and do some calculations. When you launch the Calculator Window, the iPad keyboard is active. (To deactivate it, press this button: .) Input the expression shown above. To activate the Menu, press this button: . Then convert the result to decimal form. Here’s how to create a Graph Window. Press this button: . Select Graphs.

By default the Keyboard is active and you can easily input your function. Press Enter to see your graph. Manipulating the graph is very easy and intuitive on the iPad: Summary

The iPad App of the TI-Nspire gives you all the functionality of the handheld and becomes a great presentation tool to use in a classroom setting. Sign up for Media4Math+‘s newsletter and follow this Blog for more information on the TI-Nspire.

## Using Technology to Implement the Common Core StandardsJuly 26, 2013

Posted by Media4Math in algebra, graphing calculators, math, media. As teachers look to implement the Common Core Math Standards, they are looking for resources to help them do this. In particular, they’re looking for technology-based resources.

Media4Math+ is launching a new series of technology-based activities that use the TI-Nspire to help implement the Common Core Standards. Our first activity focuses on this Common Core Standard:

CCSS.Math.Content.8.F.A.1 Understand that a function is a rule that assigns to each input exactly one output. The graph of a function is the set of ordered pairs consisting of an input and the corresponding output.1

We do so in the context of linear functions. Each TI-Nspire Activity comes with a TNS file and a Teacher’s Guide. In the linear functions activity, we start with a spreadsheet with x-y coordinates linked to a Graph Window. Students input additional values into Column A to see the corresponding outputs. The spreadsheets allows students to see clearly the idea that with a function for every input value there is a unique output value.

This naturally leads to the concept of the vertical line test, which students can see using the Graph Window. Finally, students are asked to graph the continuous linear function derived from formula in the spreadsheet.

Look for additional activities modeled on this first activity, which will focus on quadratic, exponential, and other functions.

## Do You Use the TI-Nspire?July 15, 2013

Posted by Media4Math in graphing calculators, math, media.

Media4Math+ has a large collection of video tutorials for using the TI-Nspire, whether it’s the original Clickpad, the Touchpad, or the new Nspire CX.

We’ve just made it easier to find these tutorials. While all of these tutorials are mapped to key concepts from Algebra and Geometry, we have also collected these videos by media type.

On the side bar, click on Browse By Type. You’ll see an expanded list. We just added “TI-Nspire Tutorials” as one of the clickable items. You’ll then see the full library. Coming soon: TI-Nspire Tutorials for the iPad app!

## Overcoming the Limitations of TextbooksJuly 10, 2013

Posted by Media4Math in algebra, geometry, graphing calculators, math, media.

While textbooks can provide a comprehensive overview of the curriculum, they sometimes do this at the expense of depth of coverage. Nowhere is this more obvious than in the number of worked-out examples in a textbook.

For many topics, a textbook will show 2, 3 or maybe 5 worked-out examples, but no more. The economics of textbooks requires a limitation on the number of worked-out examples. Digital resources have no such limitation.

Media4Math+ has a library of Tutorials that show a wealth of worked-out examples for key topics in Algebra and Geometry. Let’s look at a case study.

Teaching about functions and their inverses is tricky. One of the keys to understanding function inverses is to show that the graph of an inverse (if an inverse exists) is a reflection of the graph of the function across the graph of
y = x.

But the notion of a graph reflected across y = x is not an easy concept to get across. This is best shown through a multitude of examples. For the topic of Functions and Their Inverses Media4Math+ provides 18 worked-out examples (including linear and non-linear functions). Analyzing these 18 graphs allows a student to finally comprehend what this idea of something being reflected across the graph of y = x means.

The collection of 18 worked-out examples is shown in this Slideshare PowerPoint presentation.

Media4Math+ has a large and growing collection of Tutorials that show many worked-out examples, allowing students to see patterns in the solution and better understand the concept. This is one of the many ways we allow math educators to overcome the limitations of textbooks.

## Do You Use Fraction Bars?June 29, 2013

Posted by Media4Math in algebra, geometry, graphing calculators, math, media, Uncategorized.

As part of Media4Math+‘s Math Solver Library, we have a digital version of a full set of fraction bars.

First, select the two Fraction Bars to add:

Once you make the selection, the Math Solver not only shows you the answer, but provides a detailed Solution: 