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Rhonda Bierman



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8th grade Unit Information

Unit Description

Students are introduced to volume as a measure of filling and to surface area as a measure of wrapping.  After developing strategies for measuring the surface areas and volumes of rectangular prisms, students use their new knowledge to develop strategies for measure the surface are and volumes of cylinders, cones, spheres, and irregular solids.  They also study the relationships between surface area and volume.  This unit will also stimulate and sharpen students’ awareness of symmetry and to begin to develop their understanding of the underlying mathematics. 

 

Enduring Understandings

·         As the dimensions of a prism and cylinder change, so does the volume and surface area.

·         Strategies for finding volume of any three dimensional figure will work for any similar three dimensional figure.

·         Patterns can be used to predict attributes of design.

·         Designs can change position without changing shape.

·         The angles formed by a transversal passing through parallel lines have a distinct relationship.

 

Essential Questions

·         Which system of measurement is most appropriate for situations?  Why?

·         Is there a constant relationship between the dimensions and volumes of different shapes?  If so, why?  If not, why not?

·         How can the relationship between the angles formed by parallel lines and a transversal be determined?

·         Is the angle relationship formed parallel lines and a transversal consistent?

·         In transformations, what changes?  What remains the same?  Why?

·         How do I know that a shape has symmetry?  Congruence?

 

 


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