Overview 

This guide will help you understand how to use graphing tools in BW Walch’s interactive practice and assessments. You may encounter two types of graphing items: Desmos Graphs and Learnosity Graphing Items. Both allow you to create, manipulate, and analyze mathematical graphs. 


Desmos Graphs


General Desmos Graphing Tools


When you encounter a Desmos graph in your assessment, you'll see an interactive coordinate plane with points, lines, or figures already displayed. You need to adjust the display to show your answer.


Basic Navigation 


Moving Points: Click and drag with your mouse to move points into the correct position.

Lines, Curves, and other figures will automatically adjust when points are moved.

Click on link below to view demo:

Desmos Graphing.mp4

Learnosity Graphs


Toolbar Overview 


Point Tool: Add individual points to the graph.

Line Tools: Create lines, segments, or rays. 

Shape Tools: Draw polygons, circles, or other shapes. 

Text Tool: Add labels or annotations. 

Eraser: Remove unwanted elements. 

Undo/Redo: Correct mistakes or restore deleted work. 

Reset: Undo all your changes and start over.





Types of Learnosity Graphing


1.  Point Plotting 


What you’ll see: A coordinate grid and a point tool in the toolbar.


How to use: 

  • Click directly on the grid where you want to place a point. 
  • Points will snap to grid intersections (usually). 
  • To move a point, select the Move tool, then click and drag it to a new location. 
  • To delete a point, click on it and press Delete.


2.  Line Drawing 


What you'll see: Tools to draw lines, line segments, or rays on a coordinate plane. 


How to use: 

  • Select the Line tool from the toolbar.
  • Click two points to create a line. 
  • For rays, click the starting point, then click in the direction of the ray. 
  • For segments, click the two endpoints. 
  • Use the Move tool to move or modify existing lines. 


3.  Shape Drawing 


What you'll see: Tools to create polygons, circles, and other geometric shapes.


How to use: 

  • Polygons: Click consecutive vertices to create the shape, then double-click to close.
  • Circles: The circle tool allows you to click the center and a point on the circle. Drag the second point to set the radius. 
  • Rectangles: Click and drag from one corner to the opposite corner. 
  • Use the Move tool to resize or move shapes after creation.


4.  Graphing Parabolas


What you'll see: A coordinate plane where you need to sketch a parabola. 

How to use: 

  • First click on the vertex, then any other point on the parabola. 
  • Use the Move tool to adjust the parabola after creation.


Working with General Objects 

  • Selecting: Click on any object to select it (selected objects typically appear highlighted).  

  • Moving: Click and drag selected objects to new positions.

  • Deleting: Select an object and press Delete.

  • Modifying: Some objects have control points that allow you to adjust size or shape.

Tips for Different Question Types 


Coordinate Geometry 

  • Pay attention to scale and units on the axes. 
  • Count grid squares carefully when plotting points. 
  • Use the snap-to-grid feature for precise placement. 
  • Double-check coordinates by reading values from the axes. 
  • Most points will show you the point coordinates when you hover over the point.


Function Analysis 

  • Identify key features first (intercepts, domain, range). 

  • Start with major points and then connect smoothly. 

  • Use multiple points to ensure accuracy. 

  • Consider the behavior at the extremes of the domain. 


Statistical Graphs

  • Read data values carefully from tables or descriptions. 

  • Use appropriate scales for your data. 

  • Label axes clearly if text tools are available. 

  • Ensure your graph type matches what's being asked. 

Troubleshooting Common Issues 


Technical Problems 

  • Graph not loading: Refresh your browser or try a different browser.
  • Tools not responding: Make sure you've selected the correct tool before clicking. 
  • Can't see your work: Check if you've zoomed too far in or out. 
  • Lag or slow response: Close other browser tabs and applications. 


Before Submitting 

  • Review all plotted points and drawn objects. 
  • Verify that your graph matches the question requirements. 
  • Check that all required elements are present and clearly visible. 
  • Use the Check Answer button, when available.


Best Practices 

  • Read Instructions Carefully: Each graphing question may have specific requirements.
  • Plan Before Drawing: Think about what you need to create before starting. 
  • Check Your Work: Verify coordinates and relationships between graph elements. 
  • Practice: Familiarize yourself with the tools during practice sessions, not during actual assessments. 


Getting Help 


If you encounter technical difficulties or have questions about specific graphing tools: 

Ask your teacher or instructor for clarification on question requirements.

Practice using these tools outside of assessment time when possible.


Remember: The goal is to accurately represent mathematical concepts visually. Take your time, use the available tools effectively, and don't hesitate to ask for help when needed.