Mathematics Curriculum Guide
Geometry and Measurement
Geometry In the Area of: Geometry & Measurement |
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| 1
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| Interpret, draw 3-D objects. | -Present visuals and have question and answer session. -Ask students the question, "how many regular solids are there in the world?" |
- Build their own 3-D object. -See the video- 5 Platonic Solids, then show various modells and discuss the models in groups.
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-DGT Resource book p. 213, 'similarity in geometric
creatures.' -Make some of the solids.
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- Discovering Geometry, p. 527, Investigations
11.1. - Video:5 Platonic Solids. |
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Geometry In the Area of: Geometry & Measurement
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| 2
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| Classify, sort, analyze
figures in terms of congruency and similarity.
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-Lead discussion about where 'similarity' fits
in real life. -Have student discover SAS, ASA, and SSS. -Discuss the shadow measure of a tree or pole and method to use (similar triangles). |
-Make a mural. -Cut out triangles so they can see SAS, ASA, and SSS. -Measure the flagpole by the shadow method. Follow up on overhead in class. |
- Journal entry on this activity in student
portfolio. - Student portfolio. |
-Project on discovery ratio: surface area to
volume (i.e., 'why elephants have big ears') DGT p. 619. -Measure a tree/ pole in their yard or neighborhood.
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- Discovering Geometry, p.593. - Patty Paper. - Tape measure.
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Geometry In the Area of: Geometry & Measurement
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| 3
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| Use basic properties of logic &
deductive reasoning.
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- Explain, show students how to solve logic problems. - Show the use of Venn Diagrams as problem solving tool.
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- Write their own logic puzzle. - Perform a variety of Venn diagramming scenarios in groups.
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Math Applications.
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Zounds!, p.216. | ||
Geometry In the Area of: Geometry & Measurement
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| 4
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| Identify, analyze congruent and similar
figures using transformations and coordinates.
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Geometry In the Area of: Geometry & Measurement
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| 5
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| Analyze properties of
Euclidean transformations.
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Geometry In the Area of: Geometry & Measurement
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| 6
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| Develop, deduce properties and
relationships between figures from given assumptions.
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- Introduce geometry sketchpad to students. - Have students discover theorems on triangles, lines, medians, quadrilaterals. |
- Use geometric sketchpad to discover properties and
relationships of figures. - Use the Geometric Supposer in the math computer lab.
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Journal entry describing class activities.
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Star polygon project- DGT p. 317.
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-Discovering Geometry. -Program in on the computer in lab.
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Geometry In the Area of: Geometry & Measurement
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| 7
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| Use a variety of proof formats (i.e.
paragraph, two column, etc.).
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Demonstrate the indirect method by giving the green-purple people problem. | - Do the green- purple people indirect proof. - Perform the ZEBRA problem.
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Submit worksheet. | Act out the characters in the green-purple people problem
(have a play).
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See green-purple people problem. | |
Geometry In the Area of: Geometry & Measurement
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| 8
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| Use a variety of techniques of proof
(i.e. transformational, synthetic, coordinate, etc.).
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Show connection between paragraph proof and flow chart proof.
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Create a flow chart from other students' paragraph proofs and
vice versa.
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Geometry In the Area of: Geometry & Measuremen |
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| 9
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| Use inductive and deductive reasoning through real world applications. | - Provide excerpt from, The Adventure of Duncan's Men,
by Doyle. - Show how alternate interior angles were used to measure the earth. |
- Read and answer questions to examine the two forms of
logical reasoning. - See how Erastothenes measured the earth.
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Compare class activity with 'original work'. | Extend the problem to a cube with edges: 4, 5, ..., 10.
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- Discovering Geometry, p. 687 -Geometry - Moise & Downs, p. 299.
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Geometry In the Area of: Geometry & Measuremen |
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| 10
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| Translate between synthetic and
coordinate representations.
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Introduce the painted cube problem. &emdash; edge
3&emdash; paint all 6 faces&emdash; How many blocks painted on 3 sides, 2 sides,
etc.
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Complete the chart to generalize for a cube with N edges. | Submit a journal write up for the activity. | - Stained glass project DGT resource book. - Try to trisect an angle . Investigate what regular polygons cannot be constructed. |
Geometry resource book. | |
Geometry In the Area of: Geometry & Measuremen |
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| 11
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| Develop compass & straight edge constructions in context of geometric theorems. | - Demonstrate construction in small groups. - Show students the BASIC constructions
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- Do the packet of constructions. - Go on a,''treasure hunt.' Make a map and students will use constructions to find treasure.
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Create their own piece of geometric art.
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Sets goals/parameters for art activity.
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Discovering Geometry, pp. 3-33. | |
Geometry In the Area of: Geometry & Measuremen |
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| 12
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| Demonstrate and understanding of
geometric concepts based on polygons. (i.e. triangles, squares, rectangles, pentagons,
hexagons, etc.)
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Explain, explore various polygonal shapes and their properties with students. | - Write children's story illustrated with 'tangram' pictures. - Make the TRI-HEXAFLEXAGON in class.
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Rubric scoring and sharing of the story book.
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- Geometry scavenger hunt.- DGT p.325. - Make the rest of the flexagons. |
Martin Gardner's Puzzle Books.
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Geometry In the Area of: Geometry & Measuremen |
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| 13
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| Demonstrate an understanding of
geometric concepts based on circles. (i.e. tangents, chords, arcs, etc.).
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Have students explore concepts through manipulatives. | - Carry out various investigations of circle for audience. - Use the Geometric Supposer on circles.
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Folding paper circles.
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Racetrack geometry. DGT , p. 360.
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-Discovering Geometry, p. 201. - Computer program in lab.
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Geometry In the Area of: Geometry & Measuremen |
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| 14
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| Understand concepts of areas and volumes. | - Have students discover the circle theorems. Demonstrate the
volume formulas. - Use plastic models.
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Use water to show that a cone is 1/3 its cylinder, etc. Use 3-D plastic models. | Building a home project. | - Discover through measurement the theorems on central
angles, inscribed angles, etc. - In groups, discover the biggest box (volume) that can be made from a 9 x 12 piece of paper.
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-Discovering Geometry, p. 209. -3-D set of pyramids, cones, etc. |
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Geometry In the Area of: Geometry & Measuremen |
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| 15
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| Perform various activities involving
areas and volumes.
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- Introduce various formulas and an example of exploration of
formulas. - Have students discover Pic's Formula. |
- Give presentation on how to derive one of the area or
volume formulas using posters and visual aids. - Be given a worksheet to discover the formula.
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Work with group to write test items and application problems.
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Project: Archimedes principles, DGT, p. 562. | Use any Pic's formula worksheet or any geoboard investigation
of such.
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Return to Geometry Curriculum Preface
Return to Geometry Curriculum Guide
Return to Mathematics Curriculum Frameworks