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TOPIC C: Solve Mathematical Problems in the Coordinate Plane
TOPIC C: Solve Mathematical Problems in the Coordinate Plane
Dear Family,
Your student is learning more about the structure of the coordinate plane as they explore lines, angles, and figures. They study lines, graph and classify quadrilaterals, and draw symmetric figures. Students also solve problems involving symmetry, area, and perimeter in the plane. This work prepares them for learning in grade 6 that the coordinate plane extends and includes negative numbers.
NEW KEY TERMS
NEW KEY TERMS
Axes, origin, coordinate, x-axis, x-coordinate, y-axis, coordinate system, ordered pair, y-coordinate
AT HOME ACTIVITY
Create a Quadrilateral
Create a Quadrilateral
Ask your student to roll a die twice or choose two numbers between 1 and 6. (If a die is not available, write the numbers 1–6 on small pieces of paper.)
Make the first number the x-coordinate of an ordered pair and the second number the y-coordinate of the ordered pair. Have your student
repeat the process three times and then plot the ordered pairs in a 10 by 10 coordinate grid. You can draw a grid on graph paper or use the one
provided. Ask your student to connect the points to create a quadrilateral, and then ask questions about the quadrilateral.
• “Are there any parallel or perpendicular sides?”
• “Which angles of the quadrilateral are acute? Obtuse? Right?”
Find a sample of our lessons below to help support MATH TALK at home.
Students also have these in their APPLY workbook.
Lesson 11
Draw lines in the coordinate plane and identify points on the lines.
I know that any line has an infinite number of points. I know that I can draw an infinite number of lines through one point but only one line through two points. I can use patterns to determine ordered pairs for other points on a line.
EM2_G5_M6_TC_L11_PracticePartner.pdfEM2_G5_M6_TC_L11_PracticeSolutions.pdfLesson 12
Graph and classify quadrilaterals in the coordinate plane.
I can determine the lengths of horizontal or vertical line segments in the coordinate plane. I can use grid lines to determine whether angles are acute, right, or obtuse. I can classify quadrilaterals graphed in the coordinate plane.
EM2_G5_M6_TC_L12_PracticePartner.pdfEM2_G5_M6_TC_L12_PracticeSolutions.pdfLesson 13
Draw symmetric figures in the coordinate plane.
The coordinate plane is a tool that helps me think about symmetry of figures. I can use vertical and horizontal lines in the coordinate plane as lines of symmetry. I can plot symmetric points and connect points to draw symmetric figures.
EM2_G5_M6_TC_L13_PracticePartner.pdfEM2_G5_M6_TC_L13_PracticeSolutions.pdfLesson 14
Solve mathematical problems with rectangles in the coordinate plane.
I can graph and compare rectangles in the coordinate plane. I can use the coordinate plane to determine vertices of a rectangle when I know two or three of the other vertices.
EM2_G5_M6_TC_L14_PracticePartner (1).pdfEM2_G5_M6_TC_L14_PracticeSolutions (1).pdfLesson 15
Use the coordinate plane to reason about perimeters and areas of rectangles.
The coordinate plane is a tool that helps me determine perimeters and areas of rectangles.
EM2_G5_M6_TC_L15_PracticeSolutions.pdfEM2_G5_M6_TC_L15_PracticePartner.pdfReport abuse