Inserting dynamic text
How to insert dynamic text
Dynamic text contains an element that refers to one of the objects used in the construction. Thus, the text adapts to changes of the object (e.g. new coordinates, area).
| 1. |  | Select the Text tool and click in the  Graphics View. |
| 2. | | Enter area = into the text field.
Hint: This will be the static part of your text. |
| 3. | | Click on Advanced and select tab  Objects. From the list of available objects, select poly1.
Hint: This will insert the value of poly1 (which is the area of the square) into your text. As the dynamic part, this value will change if the construction is modified.
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| 4. | | Click OK when you are done. |
| 5. |  | Move the text to the desired position and  fix it using the  Style Bar.
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| 6. |  | You can edit the text using tab Text in the Settings. For example, you could add cm² to the right of the poly1 box. Click OK when you are done.
Hint: This will be another static part of your text.
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Try it yourself...
Enhancement with dynamic text
Enhance the interactive figure below by inserting dynamic text below the sliders that display the corresponding addition problem a + b = r.
To display the parts of the addition problem in colors that match the sliders and answer of the problem, you need to insert the dynamic text step by step.
Instructions
| 1. |  | Calculate the result of the addition problem: r = a + b |
| 2. | | Insert dynamic text1: a |
| 3. | | Insert static text2: + |
| 4. | | Insert dynamic text3: b |
| 5. | | Insert static text4: = |
| 6. | | Insert dynamic text5: r |
| 7. | 
| Match the color of text1, text3 and text5 with the color of the corresponding sliders, vectors and point R using the Style Bar. |
| 8. | | Line up the text in the Graphics View.
Hint: You might want to display a  grid to help you align the text elements.
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| 9. | 
| Open the Settings of the text elements and fix them, so they cannot be moved accidentally. |
| 10. | 
| Hide the labels of the sliders using the  Style Bar.
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