Grade 6 - Shape and Space
Standard 6.SS.1 - Practice constructing obtuse, acute and right angles with a protractor.
Included Skills: Geometry
Demonstrate understanding of angles including: • identifying examples • classifying angles • estimating the measure • determining angle measures in degrees • drawing angles • applying angle relationships in triangles and quadrilaterals. • Observe, and sort by approximate measure, a set of angles relevant to self, family, or community. • Explore and present how First Nations and Métis peoples, past and present, measure, represent, and use angles in their lifestyles and worldviews. • Describe and apply strategies for sketching angles including 0°, 22.5°, 30°, 45°, 60°, 90°, 180°, 270°, and 360°. • Identify referents for angles of 45°, 90°, and 180° and use the referents to approximate the measure of other angles and to classify the angles as acute, obtuse, straight, or reflex. • Explain the relationship between 0° and 360°. • Describe how measuring an angle is different from measuring a length. • Measure angles in different orientations using a protractor. • Describe and provide examples for different uses of angles, such as the amount of rotation or as the angle of opening between two sides of a polygon. • Generalize a relationship for the sum of the measures of the angles in any triangle. • Generalize a relationship for the sum of the measures of the angles in any quadrilateral. • Provide a visual, concrete, and/or oral informal proof for the sum of the measures of the angles in a quadrilateral being 360° (assuming that the sum of the measures of the angles in a triangle is 180°). • Solve situational questions involving angles in triangles and quadrilaterals.