{"id":357,"date":"2024-06-05T05:24:04","date_gmt":"2024-06-05T05:24:04","guid":{"rendered":"https:\/\/research.ced.ncsu.edu\/ptmt\/?page_id=357"},"modified":"2024-09-12T16:17:29","modified_gmt":"2024-09-12T16:17:29","slug":"teaching-geometry","status":"publish","type":"page","link":"https:\/\/research.ced.ncsu.edu\/ptmt\/teaching-geometry\/","title":{"rendered":"Teaching Geometry"},"content":{"rendered":"\n<div class=\"wp-block-group alignwide has-background has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\" style=\"background-color:#7d8c1f\">\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile is-vertically-aligned-top\" style=\"padding-top:var(--wp--preset--spacing--10);padding-right:var(--wp--preset--spacing--10);padding-bottom:var(--wp--preset--spacing--10);padding-left:var(--wp--preset--spacing--10);grid-template-columns:15% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1015\" src=\"https:\/\/research.ced.ncsu.edu\/ptmt\/wp-content\/uploads\/sites\/21\/2024\/05\/geo_page_logo-1024x1015.png\" alt=\"\" class=\"wp-image-231 size-full\" srcset=\"https:\/\/research.ced.ncsu.edu\/ptmt\/wp-content\/uploads\/sites\/21\/2024\/05\/geo_page_logo-1024x1015.png 1024w, https:\/\/research.ced.ncsu.edu\/ptmt\/wp-content\/uploads\/sites\/21\/2024\/05\/geo_page_logo-300x297.png 300w, https:\/\/research.ced.ncsu.edu\/ptmt\/wp-content\/uploads\/sites\/21\/2024\/05\/geo_page_logo-150x150.png 150w, https:\/\/research.ced.ncsu.edu\/ptmt\/wp-content\/uploads\/sites\/21\/2024\/05\/geo_page_logo-768x761.png 768w, https:\/\/research.ced.ncsu.edu\/ptmt\/wp-content\/uploads\/sites\/21\/2024\/05\/geo_page_logo.png 1332w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p class=\"has-base-2-color has-text-color has-link-color wp-elements-6b9caa0949166d95338ab553981bead4\" style=\"font-size:clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.86), 1.5rem);\">In these materials, teachers are engaged as learners of geometry as they solve problems using the dynamic geometry environment, The Geometer\u2019s Sketchpad. Tasks are designed to simultaneously develop a deeper understanding of geometric ideas, technology skills, and pedagogical strategies for enhancing students\u2019 understanding of geometry. Findings from research on students\u2019 understanding of geometry are used to raise awareness, discuss issues, and pose questions. Several chapters include video clips of students working on geometry problems using The Geometer\u2019s Sketchpad. These video clips provide teachers with examples of the ways students use different features of the technology and apply geometric reasoning to solve problems.<\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-group alignwide has-base-2-color has-text-color has-link-color wp-elements-4d88a8bc5d917fac771466a2baf78b0b has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\" style=\"font-size:clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.86), 1.5rem);\">\n<h2 class=\"wp-block-heading has-text-align-center\"><strong>Overview Materials<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table alignwide is-style-stripes\"><table class=\"has-base-2-color has-text-color has-background has-link-color\" style=\"background-color:#7d8c1f\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/drive.google.com\/file\/d\/124xOs4rA7052gmWGT9yodN2gJma5bzDn\/view?usp=drive_link\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>A Framework, Overall Goals, and Structure of Materials<\/strong><\/a><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/drive.google.com\/file\/d\/1ntbN9WbgPf9CdQAQhj2lrMwkc-Kc8ngU\/view?usp=drive_link\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Common Core At-a-Glance Alignment<\/strong><\/a><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/drive.google.com\/file\/d\/1IMgcAT7wHlJg_4zLPk3DLdZrlHgw4fSG\/view?usp=drive_link\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Common Core Detailed Alignment<\/strong><\/a><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/www.youtube.com\/playlist?list=PLHgMCGum0YRr3BPs1kC7tO1Dx-s_WwQ2j\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>YouTube Playlist<\/strong><\/a><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong><a href=\"https:\/\/drive.google.com\/file\/d\/1KspFEmELirfMcqVJLUs3J29TnD0I6G3z\/view?usp=drive_link\" target=\"_blank\" rel=\"noreferrer noopener\">Download All Materials<\/a><\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center\" style=\"font-size:clamp(1.743rem, 1.743rem + ((1vw - 0.2rem) * 2.095), 3rem);\"><strong>Choose a Chapter Below<\/strong><\/h3>\n\n\n\n<div class=\"wp-block-group alignwide has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column has-background is-layout-flow wp-block-column-is-layout-flow\" style=\"background-color:#7d8c1f\">\n<h3 class=\"wp-block-heading has-base-2-color has-text-color has-link-color wp-elements-d3c11baff5811d8bd7dccf6816f97e0e\" style=\"padding-top:0;padding-right:var(--wp--preset--spacing--10);padding-bottom:0;padding-left:var(--wp--preset--spacing--10);font-size:clamp(1.25rem, 1.25rem + ((1vw - 0.2rem) * 1.25), 2rem);\"><a href=\"https:\/\/research.ced.ncsu.edu\/ptmt\/teaching-geometry-chapter-1-introduction-to-dynamic-geometry\/\"><strong>1. Introduction to Dynamic Geometry<\/strong><\/a><\/h3>\n\n\n\n<p class=\"has-base-2-color has-text-color has-link-color wp-elements-79a0f99c1a57877722666180905032cd\" style=\"padding-top:var(--wp--preset--spacing--10);padding-right:var(--wp--preset--spacing--10);padding-bottom:var(--wp--preset--spacing--10);padding-left:var(--wp--preset--spacing--10);font-size:clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.86), 1.5rem);\">In this chapter, teachers will become familiar with a variety of different features of dynamic geometry environments (DGEs) and pedagogical issues that arise when students are learning geometry with technology.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column has-base-2-color has-text-color has-background has-link-color wp-elements-eb01ef8c0044dd382badf6894c92f906 is-layout-flow wp-block-column-is-layout-flow\" style=\"background-color:#7d8c1f\">\n<h3 class=\"wp-block-heading has-base-2-color has-text-color has-link-color wp-elements-4c547bf2e4f633b2e5b54afbd87ff42d\" style=\"padding-top:0;padding-right:var(--wp--preset--spacing--10);padding-bottom:0;padding-left:var(--wp--preset--spacing--10);font-size:clamp(1.25rem, 1.25rem + ((1vw - 0.2rem) * 1.25), 2rem);\"><a href=\"https:\/\/research.ced.ncsu.edu\/ptmt\/teaching-geometry-chapter-2-exploring-triangles\/\"><strong>2. Exploring Triangles<\/strong><\/a><\/h3>\n\n\n\n<p style=\"padding-top:var(--wp--preset--spacing--10);padding-right:var(--wp--preset--spacing--10);padding-bottom:var(--wp--preset--spacing--10);padding-left:var(--wp--preset--spacing--10);font-size:clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.86), 1.5rem);\">In this chapter, teachers will explore properties of triangles while becoming familiar with a variety of different features of dynamic geometry environments (DGEs) and pedagogical issues that arise when students are learning geometry with technology.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column has-background is-layout-flow wp-block-column-is-layout-flow\" style=\"background-color:#7d8c1f\">\n<h3 class=\"wp-block-heading has-base-2-color has-text-color has-link-color wp-elements-e77b2baa43069fa4bcc8ac23a36fa478\" style=\"padding-top:0;padding-right:var(--wp--preset--spacing--10);padding-bottom:0;padding-left:var(--wp--preset--spacing--10);font-size:clamp(1.25rem, 1.25rem + ((1vw - 0.2rem) * 1.25), 2rem);\"><a href=\"https:\/\/research.ced.ncsu.edu\/ptmt\/teaching-geometry-chapter-3-exploring-quadrilaterals\/\"><strong>3. Exploring Quadrilaterals<\/strong><\/a><\/h3>\n\n\n\n<p class=\"has-base-2-color has-text-color has-link-color wp-elements-d3a0cb4dd82bad8920924ddb5c964725\" style=\"padding-top:var(--wp--preset--spacing--10);padding-right:var(--wp--preset--spacing--10);padding-bottom:var(--wp--preset--spacing--10);padding-left:var(--wp--preset--spacing--10);font-size:clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.86), 1.5rem);\">In this chapter, teachers examine definitions and explore properties of particular quadrilaterals. Methods of classifying quadrilaterals are investigated and the van Hiele levels of geometric thinking are introduced. The roles of technology in exploring, conjecturing, and proving are highlighted.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column has-base-2-color has-text-color has-background has-link-color wp-elements-7d630b224b61e764324cb0ea74114147 is-layout-flow wp-block-column-is-layout-flow\" style=\"background-color:#7d8c1f\">\n<h3 class=\"wp-block-heading has-base-2-color has-text-color has-link-color wp-elements-b68b58ef88184164d8db544df95510ed\" style=\"padding-top:0;padding-right:var(--wp--preset--spacing--10);padding-bottom:0;padding-left:var(--wp--preset--spacing--10);font-size:clamp(1.25em, 1.25rem + ((1vw - 0.2em) * 1.25), 2em);\"><a href=\"https:\/\/research.ced.ncsu.edu\/ptmt\/teaching-geometry-chapter-4-geometric-transformations\/\"><strong>4. Geometric Transformations<\/strong><\/a><\/h3>\n\n\n\n<p style=\"padding-top:var(--wp--preset--spacing--10);padding-right:var(--wp--preset--spacing--10);padding-bottom:var(--wp--preset--spacing--10);padding-left:var(--wp--preset--spacing--10);font-size:clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.86), 1.5rem);\">In this chapter, teachers are introduced to reflections, rotations, and translations using a dynamic geometry environment (DGE). Properties of each of these transformations are introduced and common student conceptions are presented.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column has-background is-layout-flow wp-block-column-is-layout-flow\" style=\"background-color:#7d8c1f\">\n<h3 class=\"wp-block-heading has-base-2-color has-text-color has-link-color wp-elements-73c5ab020dcdfa885331c43465eed73c\" style=\"padding-top:0;padding-right:var(--wp--preset--spacing--10);padding-bottom:0;padding-left:var(--wp--preset--spacing--10);font-size:clamp(1.25rem, 1.25rem + ((1vw - 0.2rem) * 1.25), 2rem);\"><a href=\"https:\/\/research.ced.ncsu.edu\/ptmt\/teaching-geometry-chapter-5-matrix-representations-and-compositions-of-geometric-transformations\/\"><strong>5. Matrix Representations and Compositions of Geometric Transformations<\/strong><\/a><\/h3>\n\n\n\n<p class=\"has-base-2-color has-text-color has-link-color wp-elements-cce85c638c539c880c7874bbbb9672d4\" style=\"padding-top:var(--wp--preset--spacing--10);padding-right:var(--wp--preset--spacing--10);padding-bottom:var(--wp--preset--spacing--10);padding-left:var(--wp--preset--spacing--10);font-size:clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.86), 1.5rem);\">In this chapter teachers explore applications of single geometric transformations in nature, artwork, and architecture\/design. Compositions of geometric transformations are also investigated, including a video depicting high school students\u2019 work with a composition of two translations.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column has-base-2-color has-text-color has-background has-link-color wp-elements-ce3323cbff5da56e9d7928bd0334fed3 is-layout-flow wp-block-column-is-layout-flow\" style=\"background-color:#7d8c1f\">\n<h3 class=\"wp-block-heading has-base-2-color has-text-color has-link-color wp-elements-fa5423494956e74ededdbdc5a4cebe2a\" style=\"padding-top:0;padding-right:var(--wp--preset--spacing--10);padding-bottom:0;padding-left:var(--wp--preset--spacing--10);font-size:clamp(1.25rem, 1.25rem + ((1vw - 0.2rem) * 1.25), 2rem);\"><a href=\"https:\/\/research.ced.ncsu.edu\/ptmt\/teaching-geometry-chapter-6-symmetry-and-tessellations\/\"><strong>6. Symmetry and Tessellations<\/strong><\/a><\/h3>\n\n\n\n<p style=\"padding-top:var(--wp--preset--spacing--10);padding-right:var(--wp--preset--spacing--10);padding-bottom:var(--wp--preset--spacing--10);padding-left:var(--wp--preset--spacing--10);font-size:clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.86), 1.5rem);\">In this chapter teachers explore applications of geometric transformations to describe symmetry and create tessellations.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column has-background is-layout-flow wp-block-column-is-layout-flow\" style=\"background-color:#7d8c1f\">\n<h3 class=\"wp-block-heading has-text-align-center has-base-2-color has-text-color has-link-color wp-elements-8b30efd21f82f10c40a6f82977e9f9ca\" style=\"padding-top:0;padding-right:var(--wp--preset--spacing--10);padding-bottom:0;padding-left:var(--wp--preset--spacing--10);font-size:clamp(1.25rem, 1.25rem + ((1vw - 0.2rem) * 1.25), 2rem);\"><a href=\"https:\/\/research.ced.ncsu.edu\/ptmt\/teaching-geometry-chapter-7-similarity\/\"><strong>7. Similarity<\/strong><\/a><\/h3>\n\n\n\n<p class=\"has-text-align-center has-base-2-color has-text-color has-link-color wp-elements-b8cedd2416e88fb65c3e4405e42f68e0\" style=\"font-size:clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.86), 1.5rem);\">In this chapter, similarity is introduced in the context of the tessellations that were explored in the previous chapter. Approaches to teaching similarity to students are contrasted and dilations are examined.<\/p>\n\n\n\n<p><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>In these materials, teachers are engaged as learners of geometry as they solve problems using the dynamic geometry environment, The Geometer\u2019s Sketchpad. Tasks are designed to simultaneously develop a deeper understanding of geometric ideas, technology skills, and pedagogical strategies for enhancing students\u2019 understanding of geometry. Findings from research on students\u2019 understanding of geometry are used [&hellip;]<\/p>\n","protected":false},"author":66,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"ncst_custom_author":"","ncst_show_custom_author":false,"footnotes":"","_links_to":"","_links_to_target":""},"class_list":["post-357","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/research.ced.ncsu.edu\/ptmt\/wp-json\/wp\/v2\/pages\/357","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/research.ced.ncsu.edu\/ptmt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/research.ced.ncsu.edu\/ptmt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/research.ced.ncsu.edu\/ptmt\/wp-json\/wp\/v2\/users\/66"}],"replies":[{"embeddable":true,"href":"https:\/\/research.ced.ncsu.edu\/ptmt\/wp-json\/wp\/v2\/comments?post=357"}],"version-history":[{"count":26,"href":"https:\/\/research.ced.ncsu.edu\/ptmt\/wp-json\/wp\/v2\/pages\/357\/revisions"}],"predecessor-version":[{"id":1754,"href":"https:\/\/research.ced.ncsu.edu\/ptmt\/wp-json\/wp\/v2\/pages\/357\/revisions\/1754"}],"wp:attachment":[{"href":"https:\/\/research.ced.ncsu.edu\/ptmt\/wp-json\/wp\/v2\/media?parent=357"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}