Math Dictionary Sections: (21) Congruency & Similarity; (36) Transformations
Upcoming Assessments: Surface Area & Volume Quiz (Fri. 3/8)
We started this week by revisiting congruent and similar shapes, emphasizing the concept's relationship to transformations. Translations, rotations, and reflections all result in congruent shapes while dilations result in similar shapes. We did extra practice with similar shapes on and off grids as well as indirect measurement of objects (e.g. using a known height to find an unknown height). This merged into our two-day review session (see the completed study guide), preparing for today's geometry test on transformations and similar shapes along with a few review topics (just to keep the old material fresh). The test might take me a bit more time than usual to grade since there are quite a few more non-multiple choice questions this time, reflecting some of the possibilities students can expect from TEI (Technology Enhanced Items) questions that will show up on the state SOL test in a few months (seventh grade math testing will start May 28th). After the test, students started creating their artisitic reflections/rotations using their initials, my own example can be seen below.
Reflections and Rotations Initials Art |
Shmoop video on Similar Figures |
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