[tr][td][br][table][tr][td][size=85][left][/left][/size]Grades 9-12 (AS)[br][br]Duration: 30 min[br][br]Tools: one Logifaces Set / 2-3 pairs [br]or 4-6 students[br][br]Individual/Pair work[br][br]Keywords: Cosine, Formula, [br]Proof, Perpendicular projection, [br]Angle of planes[br][br][br][br][br][br][/td][td][img]https://www.geogebra.org/resource/atmvfmra/pKGw0fkjDWKZNxYT/material-atmvfmra.png[/img][/td][td][size=150][b][/b][center]Angle of Planes[/center][center][b][/b][/center][/size][table][tr][td][table][tr][/tr][/table][center][/center][table][tr][/tr][/table] [img]https://www.geogebra.org/resource/uccfkxcd/BmxK8FWZgtLILjhS/material-uccfkxcd.png[/img] [img]https://www.geogebra.org/resource/ustcdx69/JtR18BlLvkdMlwZx/material-ustcdx69.png[/img] [/td][/tr][tr][td][size=150][b][center]MATHS / Trigonometry[/center][/b][/size][/td][/tr][tr][td][br][/td][/tr][/table][/td][td][img]https://www.geogebra.org/resource/atmvfmra/pKGw0fkjDWKZNxYT/material-atmvfmra.png[/img][/td][td][img]https://www.geogebra.org/resource/mtuymvrb/w4RGGbmmPRjfnjNR/material-mtuymvrb.png[/img][/td][/tr][/table]__________________________________________________________________________________________________________________________________________[/td][/tr][tr][td][/td][/tr]

[size=50]Grade 9, Grade nine, Grade 10, Grade ten, Grade 11, Grade eleven, Grade 12, Grade twelve[br][/size][size=50]Logifaces[br]Interactive visualisation[br]Cosine, Formula, Proof, Perpendicular projection, Angle of planes, Trigonometry[br]Advanced, advanced, Advance, advance [br]math[size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50], mathematic, mathematics, exercise[/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]