Set: Using PowerPoint, display a map of
Long Range Objective: NM-GEO.9-12.1: Analyze characteristics and
properties of two- and three-dimensional geometric shapes and develop
mathematical arguments about geometric shapes.
Objective: Tsw list four descriptors of a parallelogram.
Instructional
Procedures:
See Set
Define parallelogram.
Introduce the inquiry question: What are
known factors/descriptors of parallelograms?
Display two images of parallelograms on the screen.
In small groups, ask students to view the
images and, based on what they see, develop probable descriptors of
parallelograms.
Ask each group to submit their hypotheses.
Write each one on the board.
Distribute pictures of parallelograms (different
sizes), along with rulers and protractors.
Using this equipment, students will collect
data to determine whether each hypothesis should be accepted, rejected, or
characterized as more info needed.
If additional hypotheses are discovered,
students are to add those to their list, along with the supporting data.
The teacher charts the fate of each
hypothesis as students share their conclusions.
Using the hypothesis chart on the board, the
teacher leads a discussion over what has been learned/discovered.
Q & A review of objective
Students are given a list of true and false
facts about parallelograms. They are to mark those facts that are true.
Checks for
Understanding Teacher observes group work during collection of data. Teacher
analyzes quality of data during data collection and submission.
Guided
Practice During submission of conclusions, the teacher engages students in Q
& A challenge/defense of answers.
Materials Powerpoint presentation entitled: Parallelograms