Math teacher and Geogebra expert

Joined March 2013
2,159 Photos and videos
Pinned Tweet
13 Aug 2019
The exterior angles of a polygon always add up to 360 degrees #mtbos #iteachmath #math #maths
53
891
3,213
13 Apr 2025
Envelope of a cardioid #mtbos #iteachmath #math #maths #geometry
4
16
83
5,539
20 Mar 2025
Eccentricity of an ellipse #mtbos #iteachmath #math #maths #geometry #ellipse
1
35
153
8,530
15 Mar 2025
Envelope of an ellipse #mtbos #iteachmath #math #maths #geometry
1
26
108
8,158
12 Mar 2025
1
23
118
5,196
23 Feb 2025
5
32
127
10,562
19 Feb 2025
1
30
147
9,200
7 Feb 2025
Vector addition #mtbos #iteachmath #math #maths
3
18
110
7,024
20 Jan 2025
2
47
186
15,615
11 Jan 2025
2
18
78
4,079
30 Dec 2024
Trapezoid midsegment theorem #mtnos #iteachmatb #math #maths
1
21
103
5,876
18 Dec 2024
2
33
113
8,440
14 Dec 2024
Carnot’s theorem for perpendiculars on triangles sides #iteachmath #math #maths #geometry
2
33
123
6,954
4 Dec 2024
5
27
112
7,021
30 Nov 2024
Helpful animation reminds us just how simple parallel parking is
8
49
4,627
27 Nov 2024
49
188
13,461
15 Nov 2024
One radian is just under 57.3 degrees #mtbos #iteachmath #math #maths #geometry
3
24
127
11,272
13 Nov 2024
Compound of five cubes Geogebra resource: geogebra.org/m/wubvxdrn #mtbos #iteachmath #math #maths #geometry
2
34
103
6,451
10 Nov 2024
Opposite angles of a cyclic quadrilateral add up to 180 degrees #mtbos #iteachmath #math #maths #geometry
3
62
304
27,711
3 Nov 2024
11
458
2,364
154,152
30 Oct 2024
1
35
179
9,483