# TWINS (22 May) Activity 1 (Page)

## (A) Try it Out:

Instructions: 1. ﻿Click on the NEW tool (Red Circle) and then click anywhere on the Graphics view. ﻿(a) ﻿What happens? ﻿ 2. ﻿Click on the NEW tool (Blue Circle) and then click anywhere on the Graphics view. ﻿(a) ﻿What happens?

## (B) Hands-on Activity:

Instructions: 1. Create a circle with radius 2 units. 2. Create a new tool for creating this circle. ﻿a. Output object (what will be shown): ﻿ ﻿i. Click on the circle. ﻿b. Input object (what needs to be done to create the output): ﻿ ﻿i. Select the centre of circle ﻿c. Name & Icon ( describe the function of the tool & give an icon image): ﻿ ﻿i. Give a description of the tool. ﻿ ﻿ii. Upload an icon image: https://drive.google.com/open?id=1bRFVUsNdeKTQdVRpA4P30StREpnNpR1C ﻿ ﻿iii. Check the “Show in Toolbar”. 3. New tool is shown in Toolbar. 4. Hide the circle and the point. 5. Create a circle with varying radius (1 unit). 6. Create a new tool for creating this circle. ﻿a. Output object: ﻿ ﻿i. Click on the circle. ﻿b. Input object: ﻿ ﻿i. Select the centre of circle. ﻿ ﻿ii. Select the point on the circle. ﻿c. Name & Icon: ﻿ ﻿i. Give a description of the tool. ﻿ ﻿ii. Upload an icon image: ﻿https://drive.google.com/open?id=11jqxiTGodSwocAJPtRGol2NDDUx4a081 ﻿ ﻿iii. Check the “Show in Toolbar”. 7. New tool is shown in Toolbar. 8. Hide the circle and the points. 9. [optional] Customise the Toolbar to show/remove tools. ﻿a. Keep the tools: ﻿ ﻿i. “Move”. ﻿ ﻿ii. “Move Graphics View”. ﻿ ﻿iii. Any other tools of your choice ﻿b. Apply this new Toolbar. 10. Save the file. 11. Go to your Resource Page. 12. [important] Click on “Edit Activity”. (otherwise the toolbar will not appear) ﻿a. Edit the GeoGebra element. ﻿b. Check the “Show Toolbar” and save it.