Sunnyvale
July 31, 2021, 5:05:00 PM
Saturday
Level 4

Mr. Rodney

Target 1​

Lesson Type:

New

Geometry

:

Symmetry

Create symmetrical figures (using understandings that a figure does not change in a symmetrical transformation).

Supporting targets:
1:

Define reflectional symmetry.

2:

Define rotational symmetry.

3:

Understand that an object has rotational symmetry if there is a center point around which the object is turned less than 360 degrees and the object looks the same.

4:

Define reflectional symmetry.

5:

Grade:

4th

Vocabulary:

Reflectional Symmetry, Rotational Symmetry

Activities:

  • Discussed and defined "symmetry" as well as the differences between rotaional and reflectional symmetry.
  • As a class, took turns giving clear and descriptive instructions for each step of folding a "fortune teller," practicing turn taking and communication and listening skills.
  • Unfolded the origami paper to study the lines and creases to determine if they were examples of reflectional or rotational symmetry.
  • Incorporated fractions and its vocabulary by answering question such as ":Each triangle in the fortune teller represecents what fraction of the whole paper?"

Home Exploration

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Target 2

Lesson Type:
Review
Geometry
Coordinates
Use coordinates to find a location on a grid.

:

Supporting targets:
1:

Identify the x- and y-axis on a coordinate plane.

2:

Locate points in all four quadrants of the coordinate plane.

3:

Understand that the first number in a coordinate pair indicates placement on the x-axis and the second indicates placement on the y-axis.

4:

Graph points in the first and second quadrant of the coordinate plane.

5:

Grade:

5th

Vocabulary:

Coordinates, X- and Y-Axis, Ordered Pair

Activities:

  • In tandem with the lesson on Symmetry, students were tasked with the challenge of recreating the creases on an origami paper onto the coordinate plane.
  • Students studied the folds of an unfolded paper crane and related the first two folds to what would be the x- and y-axis.
  • Took turns identifying intersection creases to determine the next logical points that could be plotted.
  • Properly labeled each point drawn with its ordered pair.

Home Exploration

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Target 3

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Home Exploration

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