Download Unit 5: Geometry - Fairfield Public Schools Math Wikispace

Grade 5 – Unit 5: Geometry
Our class is beginning Unit 5: Geometry. The unit begins with students reviewing
measuring and classifying angles and triangles. Two topics are investigated in depth in this
unit; classifying polygons and graphing points on the coordinate plane to solve problems.
Students will investigate the properties of special quadrilaterals, i.e., parallelograms,
rectangles, rhombuses, squares, trapezoids, and kites. Students will learn to graph points
on coordinate grids and use these grids to represent geometric figures such as triangles
and quadrilaterals. They will also graph realistic problem situations on coordinate planes.
Some examples of the work you child will be doing are:
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Students will classify triangles as acute, right, or obtuse based on the measure of
the angles.
- Example: In triangle ABC, the measure of the angle A is 30° and the measure of
angle B is 50°. Classify the triangle as acute, right, or obtuse. Explain your
thinking.
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Students will understand the properties of quadrilaterals.
- Example: Which quadrilateral(s) have both pairs of opposite sides as
congruent - rectangle, trapezoid, and/or parallelogram?
- Example: Which quadrilateral(s) have four congruent angles rectangle, square, and/or rhombus?
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Students will graph points on a coordinate grid to represent geometric figures.
- Example: Graph a rectangle that has an area of 16
square units and a vertex at (0,0). Give the
coordinates of the other three vertices.
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Example: Graph each of the following sets of points on the grid. Then use your
ruler to draw the polygon formed by the points on the graph.
(3,5) (3,12) (6, 15)
While our class is working on this unit here’s how you can help your child.
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Practice multiplication and division facts.
Help your child to think of how to classify special quadrilaterals. For instance, how
are all quadrilaterals the same? What is the difference between a square and a
rectangle? Which quadrilaterals are also parallelograms? Encourage your child to
use vocabulary like parallel lines, perpendicular lines, right angles, acute angles,
opposite sides, consecutive sides, congruent angles, etc. when classifying special
quadrilaterals.
Reinforce strategies that help your child think flexibly about numbers. Encourage
them to think about how to compose, decompose, and group numbers to find
efficient ways to solve problems.
Encourage your child to explain her/his thinking as he/she solves problems.
If you have any questions, please contact your child’s teacher or the Math Science Teacher.
For additional information, take a look at the Fairfield Public School Parent Guide at
http://fairfieldpublicschoolsk5math.wikispaces.com/home