The ToolbarArrow– use to select and deselect objects Point– click to add a point Circle– draw a circle Line Segment– Click and hold to obtain a ray or a line Polygon Tool – Use to draw a polygon Text– Add text to the screen or label points Marker– use to draw on screen; add equivalency lines Information Tool– use to find out information about images Custom Tool– Used to create and find tools and shapes that you can use repeatedly
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1. Draw 3 line segments. 1. Draw one circle.2. Draw 2 line segments from
center of circle to outsideedge.
3. Create 3 rd line segment tofinish triangle.
4.
Hide the circle by selectingthe circle and thenchoosing Display HideCircle.
1. Draw one circle.2. Start drawing the second
circle at the point out thecircumference of the circleand finish at the center.
3. Create a point where the
two circles intersect.4. Create the 3 lines.5. Hide the circles.
Measuring Lengths and Angles
Lengths Angles1. It’s recommended that you label your points
first.2. Click on the line segment(s) you would like to
measure.3. Measure Length(s)
1. Either click on the line segment, point and linesegment that make up the angle OR click andhold outside of the angle (by the point) anddrag into the angle so that it selects all three
Focus: Creating a slider to manipulate the equation y=mx+b
Instructions: We’ll be starting with the variable m .
1. Add a graph to your page.a. Graph Define Coordinate System
2. Draw the slider.a. Create a line segment.b. Add a point somewhere in the middle.c. Label points as A, B, C
3. We need to create a formula that will determine how far away your point is from the endpoints. Let’s make some calculations.
a. Determine your maximum and minimum points. This will be the largest and smallestnumber you wish to access on your graph.
i. For this example, we’ll use -20 and 20.b. Determine the distance between those two points.
i. 20 - -20 = 40 so the two end points are 40 units apartc. Determine the halfway point.
i. 40 ÷ 2. Pretty obvious unless you’re not using opposite values.
Note: We’ll be comparing the distance of AB and AC as a ratio. For example, if we know that AB is ½ thedistance of AC and we have a minimum and maximum points of -20 and 20, we know that the matchingvalue would be 0. But how does this translate best into a formula?
4. Let’s find the information we need to determine the ratio of AB to AC.a. Select the points AB.b. Measure Distancec. Repeat for AC.
5. Create a formula using this information to calculate the actual distance of point B.a. Number Calculate
i. Click on1. AB2. ÷3. AC4. *
5. 406. – 7. 20
AB * 40 will find the relative distanceAC on the “number line”.
Subtracting 20 will “shift” the numberline from 0 40 into -20 20.
If you are using a different min/maxvalue, you must subtract HALF of thedistance between your min/max.
7. Create the equation that will actually do the graphing.a. Graph Plot New Functionb. Click on
i. The calculation for m ii. *iii. Xiv. +v. The calculation for b vi. OK
Make it Look Pretty: 8. Hide everything that is not needed for students to manipulate.
a. All End Pointsb. All Labels
c. All calculations, equations and measurements
9. I would considera. moving the sliders together.b. adding a text label to indicate the variable that matches each slider.c. Adding a textbox that displays the equation y=mx+b where the values m and b are
1. Create a graph with a grid.a. Graph Define Coordinate System
2. Draw two line segments and label the end points3. Place a point on the intersection between the two line segments.4. Label the point.5. Determine its coordinates
a. Click on the pointb. Measure Coordinates
MidPoint of a Line Segment
1. Create a graph with a grid.a. Graph Define Coordinate System.b. Draw a line segment.c. Select the line segment and choose