| Lessons |
Lesson Summary
|
| For
virtual manipulatives for geometry, please see: http://matti.usu.edu/nlvm/nav/grade_g_3.html |
| Geom
3.1 Isosceles Triangle Properties
*Graphic
Organizer *PDF
|
Students
use Geometer’s Sketchpad to explore the properties
of isosceles triangles.
|
| Geom
3.2 Triangles Properties
|
Students
use Geometer’s Sketchpad to manipulate premade sketches
to prove triangle congruence theorems. |
Geom
3.3 Triangle Conjectures: Mid-segments of Triangles and Triangle
Inequalities
PDF
|
Students
cut one triangle into two triangles, attempting to create
two equal areas. Then they use cut-out paper triangles, fold
for mid points, draw to create mid-segments, measure sides
and mid-segments, make conjectures about the relationships
between the mid-segments and sides and relationships found
among the smaller triangles created by the mid-segments and
the original triangle. |
Geom
3.4a Triangle Centers
PDF
Geom
3.4b Triangle Bisector and Center PDF
*Sketchpad
demo |
Students
use Geometer’s Sketchpad or Patty Paper Geometry to
create triangle altitudes, medians, perpendicular bisectors,
and angle bisectors. They observe and draw conclusions related
to the intersections created by these triangle lines. *Access
sketchpad demo. |
| Geom
3.5 Geometric Figures and Coordinate Space |
Students
have the opportunity to explore shape properties on a coordinate
grid. |
Geom
3.6a Exercise on Quadrilaterals
*Record
Sheet PDF |
Students
construct quadrilaterals and identify characteristics of consecutive
and opposite angles and sides, as well as diagonals. They
create and defend their own quadrilateral hierarchy chart.
*Access record sheet or graphic organizer |
Geom
3.6b Building Quadrilaterals
*Graphic
organizer
PDF |
See
above.
|
| Geom
3. 7 Quadrilateral Properties Assessment PDF |
Assessment |
Geom
3.8 What's the Angle, What's the Shape Assessment
PDF
|
Assessment |
| |
|
