Instructors can show a proper subset using the Venn Diagram with One Circle Inside Holt science and technology earth science textbook pdf Circle overhead. This activity allows teachers to use quite a bit of set notation and terminology. The terms and phrases chosen by the teacher
muni budhu soil mechanics and foundations pdf the Sorting Cards activity sheet make the activity more or less difficult. If the identifying phrase is "opposite angles congruent," student can discuss how one determines opposite angles or opposite sides, or whether that term has meaning for polygons other than quadrilaterals. Polygon 16 can be used to address eagth that students have with qualifiers, such as at least and all. The class can proceed to discuss whether the phrase itself should be modified.