8 Calculate the run: run = x(B) - x(A). Hint: gives you the x-coordinate of point B. x(B) Insert dynamic text1: and select rise from Objects. 9 rise = Insert dynamic text2: and select run from Objects. 10 run = 11 Calculate the slope of line a: slope = rise / run. Insert dynamic text3: and select slope from Objects. 12 slope = Change properties of objects in order to enhance your construction 13 and fix text that is not supposed to be moved. Dynamic Fractions and Attaching Text to Objects Inserting dynamic fractions Using LaTeX formulas, text can be enhanced to display fractions, square roots, or other mathematical symbols. Enhance your construction of the slope triangle by entering a fraction showing how to calculate the slope of a line. Activate tool Text and click on the Graphics View. Type into the text Input Bar. window’s slope = Check LaTeX formula and select Roots and Fractions a/b from the list. Place the cursor within the first set of curly braces and replace a by number rise from the Objects drop-down list. Place the cursor within the second set of curly braces and replace b by number run from the Objects drop-down list. Click OK. Attaching text to objects Whenever an object changes its position, attached text adapts to the movement and follows along. Enhance your construction of a slope triangle by attaching text to the sides of the slope triangle. Create midpoint D of the vertical segment using tool Midpoint or Center. Create midpoint E of the horizontal segment. Open the Properties dialog and select text1 (rise = Click on tab …). Position and select point D from the drop-down list next to Starting Point. Select text2 (run = in the Properties dialog and set point E as Starting …) Point. Hide the midpoints and D E.
8 Calculate the run: run = x(B) - x(A). Hint: x(B) gives you the x-coordinate of point B. 9 Insert dynamic text1: rise = and select rise from Objects. 10 Insert dynamic text2: run = and select run from Objects. 11 Calculate the slope of line a: slope = rise / run. 12 Insert dynamic text3: slope = and select slope from Objects. 13 Change properties of objects in order to enhance your construction and fix text that is not supposed to be moved. Dynamic Fractions and Attaching Text to Objects Inserting dynamic fractions Using LaTeX formulas, text can be enhanced to display fractions, square roots, or other mathematical symbols. Enhance your construction of the slope triangle by entering a fraction showing how to calculate the slope of a line. Activate tool Text and click on the Graphics View. Type slope = into the text window’s Input Bar. Check LaTeX formula and select Roots and Fractions a/b from the list. Place the cursor within the first set of curly braces and replace a by number rise from the Objects drop-down list. Place the cursor within the second set of curly braces and replace b by number run from the Objects drop-down list. Click OK. Attaching text to objects Whenever an object changes its position, attached text adapts to the movement and follows along. Enhance your construction of a slope triangle by attaching text to the sides of the slope triangle. Create midpoint D of the vertical segment using tool Midpoint or Center. Create midpoint E of the horizontal segment. Open the Properties dialog and select text1 (rise = …). Click on tab Position and select point D from the drop-down list next to Starting Point. Select text2 (run = …) in the Properties dialog and set point E as Starting Point. Hide the midpoints D and E.
ggb-intro-en44-2014-07-17.docx