Calculators and Tools

From Grove to You | Florida Agriculture in the Classroom (FAITC) Brief Description: Students will trace the production of oranges from the grove to the store as fresh fruit and as juice. Students will become citrus growers and join a co-op to determine the best ways to market and sell their fruit. Objectives: Students will be able to: Identify steps of citrus production from the tree to the store.Calculate the acreage needed for a citrus grove based on a real-life example.Describe the purpose, structure and function of a cooperative.Use the Internet to obtain information about orange juice production. Time: Two, 45 minute class periods, plus time for Internet research Downloads:

Math Tools A community library of technology tools, lessons, activities, and support materials for teaching and learning mathematics. New to Math Tools? Welcome! There's a lot of stuff in here. Join our community! View our Orientation to get some ideas of how to make the most of this resource. Announcements Travel Grant Opportunity: ICME 2016: Hamburg, Germany Applications for travel grants are now available to attend the Thirteenth International Congress on Mathematical Education (ICME-13), to be held in Hamburg, Germany from July 24-31, 2016. What's Hot? [June 25] Touch Decimal: Maurici writes, "In a few days, (end of June 2015) I will launch the new free Android app: Touch Decimal." June 30, 2015: Tracey, Max, Annie, Suzanne, Richard, Steve, Jay, Tony Tool: Pick-a-Pathby NCTM Illuminations

The 2014 Tax Brackets Introduction Every year, the IRS adjusts more than forty tax provisions for inflation. This is done to prevent what is called “bracket creep.” This is the phenomenon by which people are pushed into higher income tax brackets or have reduced value from credits or deductions due to inflation instead of any increase in real income. The IRS uses the Consumer Price Index (CPI) to calculate the past year’s inflation and adjusts income thresholds, deduction amounts, and credit values accordingly. Income Tax Brackets and Rates In 2014, the income limits for all brackets and all filers will be adjusted for inflation and will be as follows (Table 1).[1] The top marginal income tax rate of 39.6 percent will hit taxpayers with an adjusted gross income of $406,751 and higher for single filers and $457,601 and higher for married filers. Source: Internal Revenue Service Standard Deduction and Personal Exemption The standard deduction will increase by $100 from $6,100 to $6,200 for singles (Table 2).

Standards for Mathematical Practice » Use appropriate tools strategically. Mathematically proficient students consider the available tools when solving a mathematical problem. These tools might include pencil and paper, concrete models, a ruler, a protractor, a calculator, a spreadsheet, a computer algebra system, a statistical package, or dynamic geometry software. Proficient students are sufficiently familiar with tools appropriate for their grade or course to make sound decisions about when each of these tools might be helpful, recognizing both the insight to be gained and their limitations. For example, mathematically proficient high school students analyze graphs of functions and solutions generated using a graphing calculator. They detect possible errors by strategically using estimation and other mathematical knowledge. When making mathematical models, they know that technology can enable them to visualize the results of varying assumptions, explore consequences, and compare predictions with data.

From Canes to Grains | Florida Agriculture in the Classroom (FAITC) Brief Description Students will trace the production of sugar from the field (sugar canes) to the granulated sugar (grains of sugar) in writing and with a flow chart, exploring this topic on the Internet. Students will solve real-world mathematics problems involving measurements and real-world data. Objectives: Students will be able to: Identify and describe the chemical and physical changes in the production of sugar.Convert units of measure in a recipe.Use the Internet to obtain information about sugar production. Time 3, 45 minute class periods, plus time for Internet research Downloads

Khan Academy When Work Is Punished: The Tragedy Of America's Welfare State Exactly two years ago, some of the more politically biased progressive media outlets (who are quite adept at creating and taking down their own strawmen arguments, if not quite as adept at using an abacus, let alone a calculator) took offense at our article "In Entitlement America, The Head Of A Household Of Four Making Minimum Wage Has More Disposable Income Than A Family Making $60,000 A Year." In it we merely explained what has become the painful reality in America: for increasingly more it is now more lucrative - in the form of actual disposable income - to sit, do nothing, and collect various welfare entitlements, than to work. This is graphically, and very painfully confirmed, in the below chart from Gary Alexander, Secretary of Public Welfare, Commonwealth of Pennsylvania (a state best known for its broke capital Harrisburg). But perhaps the scariest chart in the entire presentation is the following summarizing the unsustainable welfare burden on current taxpayers:

udltechtoolkit - Math tools Math Tools Some students struggle with organizing their written work and forming numbers and symbols. These tools compensate for mechanical issues: Number Navigator - A program that assists those with fine motor problems to set out columnar arithmetic, without the need for a spreadsheetBig, Simple Talking Calculator - "The Big Simple Talking Calculator application was designed to be a full screen calculator with large buttons that covers the following basic functions: +, -, *, /, x^2, x^y, 1/x, %, square root, memory store and memory recall."FunctionVisualizer - Online Function Visualizer - displays the graph of arbitrary F(x) function.GraphCalc - Online Graphing CalculatorCreate A Graph> e-Tutor Graphic Calculator Graph equationsFooPlot - Online plotting toolPDF Pad - Create and print graph paperEfoFex - Higher Level Math - free for students with special needsMath Sheet Calculator - iPad app which simulates a sheet of paper Time Telling Tools Virtual Math Manipulatives Math Games

Florida’s Ag Cash Receipts | Florida Agriculture in the Classroom (FAITC) Brief Description: Students will examine the economic importance of agriculture to the state of Florida by examining and manipulating data in several ways. Florida’s Agricultural Cash Receipts will analyze the production and value of Florida’s field crops, Florida’s livestock cash receipts, and dairy products. Objectives: Students will be able to: Identify the significance of agriculture to Florida’s economy.Interpret agricultural data to create line graphs and histograms (bar graphs).Construct line graphs to show variations in livestock cash receipts.Create a pie chart of livestock cash receipt percentages.Choose the appropriate operation, multiplication or division, to complete the data of field crops. Time: Activity One:45 to 60 minutes Activity Two: Two, 45 to 60 minute class periods Activity Three: Two, 45 to 60 minute class periods Downloads:

Computational Skills for Biology Students June 2006 Why is it important to develop computer savvy students of biology? Understanding quantitative research is critical to grasping biology. A good fraction of modern biology is heavily quantitative. Photo: Microsoft Images. Gross: A good fraction of modern biology is heavily quantitative, and one of the main complaints that I have heard for a very long time from biologists is that students do not have the capability to carry out the basic quantitative research that is critical to all modern biology across the spectrum. Graphing is a required basic skill. One of the most distressing comments has been about the simplest things: reading, interpreting, and producing graphs—simple graphs that students have seen again and again since they were in elementary and middle school. Perhaps the simplest illustration of this point is the basic way we communicate science, which requires a quantitative framework for understanding. How do teachers go about helping students become more computer savvy?