How to use Desmos Graphing Calculator Tool _updated

Cambridge Australia (Education)
1 Sept 202207:19

TLDRThis video tutorial guides viewers on utilizing the Desmos Graphing Calculator, a tool integrated into Cambridge Max products. It demonstrates launching the calculator, navigating its interface, and manipulating coordinate points, equations, and sliders. The video also covers advanced features like function notation, enabling users to evaluate expressions and generate tables of values. The aim is to provide a comprehensive understanding of the Desmos Graphing Calculator's capabilities for educational purposes.

Takeaways

  • 😀 Launch Desmos by clicking the icon in the toolbar within the relevant unit section.
  • 📐 To use the graphing calculator effectively, consider full-screen mode for better visibility.
  • 🔍 The calculator includes an on-screen keyboard and a coordinate plane for interactive graphing.
  • 🔄 Zoom in on specific points by double-clicking or using the scroll on your mouse for detailed views.
  • ⚙ Adjust graph settings like projector mode, grid lines, axis numbers, and scale through the settings button.
  • 📝 Input expressions, functions, coordinate points, or tables directly into the expression fields or by using the plus sign.
  • 👁‍🗚 Desmos provides error alerts for incorrectly notated points, ensuring accuracy in graphing.
  • 🎚 Utilize sliders for variables to dynamically adjust values and observe changes on the coordinate plane.
  • 📉 Evaluate linear equations and their intersections by clicking on points of interest on the graph.
  • 📊 Incorporate lists of values or function notation for more complex graphing and table generation.
  • 🔁 The ability to define functions allows for quick evaluations and table generation using the defined function across inputs.

Q & A

  • How do you launch the Desmos graphing calculator in Cambridge Max products?

    -To launch the Desmos graphing calculator, navigate to the relevant unit section and click on the Desmos graphing calculator icon located in the toolbar.

  • What is the recommended way to view the Desmos graphing calculator?

    -It is recommended to view the Desmos graphing calculator in full screen by clicking the full screen button.

  • How can you reposition the Desmos graphing calculator tile?

    -You can reposition the tile by dragging it to the desired location.

  • What is the function of the hide list button in the Desmos graphing calculator?

    -The hide list button allows you to hide the input section on the left-hand side of the calculator.

  • How can you zoom in on a specific point using the Desmos graphing calculator?

    -To zoom in on a specific point, double-click on the point, or use the scroll on your mouse, or the zoom buttons located at the top right of the calculator.

  • What options are available in the settings button of the Desmos graphing calculator?

    -The settings button allows you to enable projector mode, toggle grid lines, axis numbers, minor grid lines, change the scale of the axes, and add labels for each axis.

  • How do you enter a coordinate point in the Desmos graphing calculator?

    -Enter a coordinate point by typing it into an expression field or by clicking the plus sign to add a new point.

  • What happens if you enter a point with incorrect notation in Desmos?

    -Desmos will alert you with an error if the point is typed in incorrectly.

  • How can you add a label to a point in the Desmos graphing calculator?

    -After typing in the point correctly, you can add a label and change the settings of the point by clicking and holding the circle next to the point.

  • What is the purpose of a slider in the Desmos graphing calculator?

    -A slider allows you to adjust the value of a variable and see the changes reflected in the coordinate plane.

  • How can you evaluate an expression for certain values of x in Desmos?

    -To evaluate an expression for certain values of x, type 'x = value' in the expression field and click on the point of intersection when it appears.

  • What is the benefit of using function notation in the Desmos graphing calculator?

    -Using function notation allows you to define a function that can be used in other lines of input, making it easier to evaluate the function for different values and produce tables of values.

Outlines

00:00

📊 Introduction to the Decimals Graphing Calculator

This paragraph introduces the Decimals Graphing Calculator, a tool included in selected Cambridge Max products. It explains how to launch the calculator from the unit section by clicking on the Desmos graphing calculator icon in the toolbar. The user can reposition the calculator, go full screen, and use various features such as hiding the input section, zooming in on the coordinate plane, and adjusting settings like projector mode, grid lines, axis numbers, and scale. The paragraph also covers the input section where users can type in functions, expressions, coordinate points, or tables. Two methods for entering data are highlighted: directly typing into the expression fields or using the plus sign to add new ones. The video script also mentions how to correct errors in notation and how to add labels and change settings for coordinate points.

05:01

🔍 Exploring Features and Functions of the Graphing Calculator

The second paragraph delves into the use of the graphing calculator, starting with the input of coordinate points and the automatic update in the coordinate plane. It introduces the slider feature, allowing users to adjust the value of a variable and see the changes reflected in real-time. The paragraph also demonstrates how to create animations by adjusting variable values over time. The discussion moves on to linear equations, showing how to input them and view their representation on the coordinate plane, including identifying and marking intercepts. The use of sliders and lists of values to dynamically update expressions is also covered. The paragraph concludes with the benefits of using function notation, which allows for easier evaluation of expressions for specific values and the creation of tables of values that update automatically across the calculator.

Mindmap

Keywords

💡Desmos Graphing Calculator

The Desmos Graphing Calculator is an online tool used for creating and analyzing graphs of mathematical functions and equations. In the video, it is presented as a feature within Cambridge Max products, which allows users to visualize mathematical concepts dynamically. The tool is launched from the unit section and offers interactive functionalities such as zooming, graphing, and inputting expressions.

💡Coordinate Plane

A coordinate plane, also known as a Cartesian plane, is a two-dimensional plane that is divided into four quadrants by two perpendicular lines, the x-axis (horizontal) and the y-axis (vertical). In the context of the video, the coordinate plane is where the graphing calculator displays graphs of functions and equations, allowing users to interact with and analyze the graphical representations of mathematical data.

💡Zoom

Zooming in the video refers to the ability to magnify a specific area of the coordinate plane for a closer look at the graph. This is an essential feature in graphing calculators as it helps in examining the behavior of functions at different scales. The video demonstrates how to zoom in by double-clicking on a point or using the mouse scroll and touch gestures on a tablet.

💡Settings

Settings in the Desmos Graphing Calculator allow users to customize the appearance and functionality of the graphing environment. The video mentions options like enabling projector mode, toggling grid lines, and adjusting axis scales. These settings help tailor the graphing experience to the user's needs, making it more suitable for presentations or detailed analysis.

💡Input Section

The input section of the Desmos Graphing Calculator is where users type in mathematical expressions, functions, or coordinate points. It is highlighted in the video as a key area for interacting with the calculator, where users can enter data that will be visualized on the coordinate plane. The video also mentions the ability to hide this section and use an on-screen keyboard for convenience.

💡Expression Fields

Expression fields within the Desmos Graphing Calculator are the specific areas where users can input mathematical expressions or functions. The video explains that users can either type directly into these fields or add new ones by clicking on the plus sign. These fields are crucial for defining what is graphed on the coordinate plane.

💡Coordinate Points

Coordinate points are pairs of numbers that represent positions on the coordinate plane. In the video, it is shown how to input these points into the graphing calculator, which then plots them accordingly. The video also demonstrates how to label and style these points, as well as how to input multiple points in a single expression field.

💡Slider

A slider in the context of the Desmos Graphing Calculator is a user interface element that allows for the input of a variable to take on a range of values. The video shows how sliders can be used to dynamically adjust the value of a variable and see its effect on the graph in real-time, which is particularly useful for exploring how changes in variables affect functions or equations.

💡Linear Equations

Linear equations are mathematical equations that represent straight lines when graphed on a coordinate plane. The video demonstrates how to input linear equations into the Desmos Graphing Calculator and observe their graphical representation. It also shows how to find and label intercepts, and evaluate the equation for specific values of the variable.

💡Function Notation

Function notation is a way of expressing functions where a function name, often a letter like 'f', is followed by the variable in parentheses, e.g., 'f(x)'. In the video, function notation is used to define functions within the graphing calculator, which can then be referenced in other parts of the calculator for evaluations or to generate tables of values. This feature simplifies the process of working with functions in a graphing context.

💡Table of Values

A table of values is a list that shows the outputs of a function for a set of input values. The video explains how to create a table of values using function notation in the Desmos Graphing Calculator. This feature is beneficial for understanding the behavior of a function across different inputs and can be used to analyze patterns or make predictions.

Highlights

Introduction to using the Desmos Graphing Calculator Tool.

Accessing the Desmos graphing calculator through the Cambridge Max products.

Launching the Desmos graphing calculator from the toolbar.

Options to reposition or full screen the graphing calculator.

Hiding the input section using the hide list button.

Using the on-screen keyboard for tablet devices.

Zooming in on the coordinate plane by double-clicking or using mouse scroll.

Adjusting graph settings like projector mode, grid lines, and axis labels.

Entering functions or expressions in the input section.

Desmos alerts users to incorrect notation for coordinate points.

Adding and customizing coordinate points with labels and styles.

Entering multiple points in a single expression field.

Introducing the slider feature for variables in coordinate points.

Adjusting the value of a variable using the slider.

Creating animations by playing variable values across a range.

Graphing linear equations and identifying intercepts.

Evaluating expressions for specific values using the expression field.

Solving simultaneous equations by finding points of intersection.

Using variables or lists of values in expressions.

Benefits of using function notation for defined functions.

Evaluating defined functions for specific inputs.

Creating tables of values using defined functions.

Conclusion of the basic tutorial on using the Desmos graphing calculator.

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