Changes

* Digital : Computer, geogebra application, projector.

* Digital : Computer, geogebra application, projector.

* Non digital : Worksheet and pencil.

* Non digital : Worksheet and pencil.

* Geogebra file: [https://ggbm.at/kdfrzkvk Demo of similar triangles.ggb]

* Geogebra file: [https://ggbm.at/kdfrzkvk Demo of similar triangles.ggb] ,[https://ggbm.at/qdsyfwem Similar triangle 1.ggb], [https://ggbm.at/q9yvw4hq Similar triangle 2 ratio.ggb], [https://ggbm.at/d4au8tap Similar triangle 3 ratio.ggb]{{Geogebra|kdfrzkvk}}{{Geogebra|qdsyfwem}}

[https://ggbm.at/qdsyfwem Similar triangle 1.ggb]

{{Geogebra|q9yvw4hq}}{{Geogebra|d4au8tap}}

 

[https://ggbm.at/q9yvw4hq Similar triangle 2 ratio.ggb]

 

[https://ggbm.at/d4au8tap Similar triangle 3 ratio.ggb]

 

{{Geogebra|kdfrzkvk}}{{Geogebra|qdsyfwem}} {{Geogebra|q9yvw4hq}}{{Geogebra|d4au8tap}}

===Process (How to do the activity)===

===Process (How to do the activity)===