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Congruence


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Keywords: Congruence, measurement
Subject(s): Science, Math
Grades 5 through 7
NETS-S Standard:
  • Creativity and Innovation
  • Communication and Collaboration
  • Critical Thinking, Problem Solving, and Decision Making
View Full Text of Standards
School: Westhaven Elementary School, Portsmouth, VA
Planned By: Brandi Cotton
Original Author: Brandi Cotton, Portsmouth
Title/Lesson: Measurement

SOL#: 6.15
The student will determine congruence of segments, angles, and polygons by direct comparison, given their attributes. Examples of non-congruent and congruent figures will be included.


Curriculum Frameworks Page Number: 24

Essential Knowledge:
The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representations to:
Characterize polygons as congruent and non-congruent according to the measures of their sides and angles.
Determine the congruence of segments, angles, and polygons by direct comparison, given their attributes.
Essential Vocabulary:
Congruent same size, same shape

Non-congruent - different shapes and sizes

Polygons any closed shapes

Comparison -

Similar nearly, but not exactly the same or alike

Objective: TSW/TTL:

6.15.1 Characterize polygons as congruent and non congruent according to the measures of their sides and angles.


Set:
Using the Promethean board, the students will have to organize shapes based on their attributes. Some shapes will be open to show ir-regular shapes.




Procedure/Input:
TTW have students find congruent shapes by using patty paper. The shapes will be given in a regular and reduced size. The patty paper will help the students decide if the shapes are congruent or similar. TSW complete P 524, #1-6.

DIFFERENTIATED ACTIVITY:

Group A Teacher Guided Remediation Group B-Independent
TTW give the students more examples to use with the patty paper.
P 536 #9-22




Eval:
Check class work for understanding.

Clo:
How does patty paper help us determine congruent or similar shapes?


Materials:
Text, Overhead, White board, grid paper, patty paper.

Instructional Strategy:
Hwrk/Prct Sim/Diff Summ/NtTkng Coop Lrng Reinf Eff/Pro Recog Nonling. Rep.
Set Goal/Pro Fdbk Gener/Tst Hypot Clues/Q/Advanced Org



Higher Leveled Questions: Circle 3: K C A A S E
1 How would you classify shapes as similar or congruent.
2 How could you verify whether shapes are similar or congruent?
3 How would you define similar and congruent?





Technology:

Students will use a Promethean Flipchart to determine congruent figures by manipulation.
Cross-Curriculum Ideas
Science and Measurement
Follow-Up
Using patty paper or tracing paper to find congruence.
Materials: Whiteboards, Mobile Labs, Flip Video, MP3 Players, Middle School, Printers, Camera/Video Accessories, Tripods, Headsets, Math, Middle