Extending a (TIMSS) Japanese Lesson Using Trigonometry
One of the Japanese mathematics lessons reported in the Third International Mathematics and Science Study (TIMSS) involves the concept of the area of a triangle. On the first day, students explore the area of triangles obtained by using the same base but translating the vertex opposite the base along a path parallel to the base, thus keeping the height constant. The next day the students are reminded of that property and are given a challenging problem that applies the property.
2000 ◽
Vol 100
(3)
◽
pp. 139-150
◽
Keyword(s):
1997 ◽
Vol 13
(1)
◽
pp. 49-58
◽
2009 ◽
pp. 1599-1630
2004 ◽
Vol 46
(3)
◽
pp. 241-257
◽
2000 ◽
Vol 8
◽
pp. 43
◽