Zakazane produkcje
Znajdź zawartość
Wyświetlanie wyników dla tagów 'Teachers' .
Znaleziono 7 wyników
-
Free Download Education 4.0 From Teachers To Teachers Published 10/2024 MP4 | Video: h264, 1920x1080 | Audio: AAC, 44.1 KHz Language: English | Size: 4.92 GB | Duration: 3h 7m The changes in education in the new industrial revolution What you'll learn Define the key concepts of Education 4.0 Implement AI in teaching and create an integration plan Follow some of the UAE projects to implement AI in education Spark up learning in AI in education Digital literacy Requirements We recommend taking our free introductory course first Description This course is focusing not only on the transformative potential of Artificial Intelligence (AI) in revolutionizing education, but also on other technologies with a specific focus on enabling Education 4.0. Parti[beeep]nts will explore the existing challenges in global education systems and how technologies of the 4th Industrial Revolution can address these issues by augmenting teaching roles, refining assessment processes, supporting digital literacy, and personalizing learning experiences. The course will provide an in-depth understanding of the key components of Education 4.0, including global citizenship, innovation, technology, and interpersonal skills.Course structure and content:5 sections with 4-6 lessons (each consisting a video, further notes and explanations)3 case studies on UAE, a leader in Education 4.0 implementation1 case study on global implementationAt the end of each section a podcast based video for recapitulationAccess to our free discord channel4 quizzes and 1 examination which makes you allegeable to:Final certificateThrough a series of detailed case studies and practical examples, educators, policymakers, and stakeholders will gain valuable insights into integrating AI effectively into educational practices. These real-world examples will highlight successful AI implementations across various educational contexts, demonstrating the potential benefits and addressing common challenges. The course aims to equip parti[beeep]nts with the knowledge and tools to harness AI's capabilities to create a more responsive, inclusive, and future-ready education system.Parti[beeep]nts will also learn about the ethical considerations and equity concerns related to AI in education, ensuring that the integration of AI promotes fairness and accessibility for all students. Additionally, the course will cover strategic planning for AI implementation, providing a step-by-step guide for educators and policymakers to integrate AI into their educational systems effectively.By the end of the course, parti[beeep]nts will be well-prepared to lead the transformation of their educational institutions through the innovative use of AI, fostering an environment that supports lifelong learning and prepares students for the demands of the 21st-century workforce. Overview Section 1: Introduction to Education 4.0 and AI Lecture 1 Education 4.0? Lecture 2 What Are We Going to Cover in this Course? Lecture 3 Resources and More Research Lecture 4 The Role of AI in Modern Education Lecture 5 Global Education Challenges Lecture 6 AI's Potential to Address Some of These Issues Lecture 7 AI and Global Educational Challenges Lecture 8 Ethical Consideration in AI Integration Lecture 9 Emerging Technologies Lecture 10 Emerging Technologies Lecture 11 Recap Section 1 Section 2: AI in Teaching and Learning Lecture 12 Augmenting Teachers' Role Lecture 13 Personalizing Learning with AI Lecture 14 AI-Powered Assessment and Feedback Lecture 15 Integrating AI into Curriculum Lecture 16 Unending Teacher Training Lecture 17 Teachers in Education 4.0 Lecture 18 UAE Case Study: AI Tutor Project Lecture 19 UAE Case Study Explainer: AI Tutor Project Lecture 20 Recap Section 2 Section 3: Digital Literacy and Equity in AI Education Lecture 21 Digital Literacy for Teachers and Students Lecture 22 Ensuring Educational Equity and Transparency Lecture 23 Digital Literacy and Educational Equity Lecture 24 UAE Case Study: 1 Million Teachers Lecture 25 UAE Case Study Explainer: 1 Million Teachers Lecture 26 Global Initiatives and Standards Lecture 27 Long-term Strategies Lecture 28 Recap Section 3 Section 4: Strategic Implementation of AI in Education Lecture 29 Planning for AI Integration Lecture 30 Ensuring Long-Term Impact Lecture 31 UAE Case Study: AI Implementation Strategy Lecture 32 UAE Case Study Explainer: AI Implementation Strategy Lecture 33 Data Privacy and Security Lecture 34 Monitoring and Governance Lecture 35 Planning for successful AI integration Lecture 36 Recap Section 4 Section 5: Final Thoughts Lecture 37 Global Case Studies in AI Education Lecture 38 Global Case Studies in AI Education Explainer Lecture 39 Teacher And Student Perspectives Lecture 40 Teacher and Student Perspectives Explainer Lecture 41 Your Journey into Education 4.0 Teachers who want to integrate AI to their teaching plans.,Anyone interested in Education 4.0,Teachers Screenshot Homepage https://www.udemy.com/course/education-4-from-teachers-to-teachers/ Rapidgator https://rg.to/file/10ebe00e9c9d947697920be823d88954/tgcly.Education.4.0.From.Teachers.To.Teachers.part6.rar.html https://rg.to/file/3e146185c02edf16a357511a7881b3e4/tgcly.Education.4.0.From.Teachers.To.Teachers.part4.rar.html https://rg.to/file/3f88965e42957c804c0d01f1f088aec2/tgcly.Education.4.0.From.Teachers.To.Teachers.part5.rar.html https://rg.to/file/4612e53c1bfb8b21149ee5310e3fa81b/tgcly.Education.4.0.From.Teachers.To.Teachers.part1.rar.html https://rg.to/file/cfdf2ab4c09eab49d80b90b08c8464a0/tgcly.Education.4.0.From.Teachers.To.Teachers.part2.rar.html https://rg.to/file/df78c59ceabd06a998362b1a58f6c0bb/tgcly.Education.4.0.From.Teachers.To.Teachers.part3.rar.html Fikper Free Download https://fikper.com/2HQQmevXJx/tgcly.Education.4.0.From.Teachers.To.Teachers.part6.rar.html https://fikper.com/9802PIR09h/tgcly.Education.4.0.From.Teachers.To.Teachers.part1.rar.html https://fikper.com/FPu267yXqN/tgcly.Education.4.0.From.Teachers.To.Teachers.part3.rar.html https://fikper.com/Rxs1aqaFQt/tgcly.Education.4.0.From.Teachers.To.Teachers.part5.rar.html https://fikper.com/wz78XtPzIG/tgcly.Education.4.0.From.Teachers.To.Teachers.part4.rar.html https://fikper.com/zfZslJpW6d/tgcly.Education.4.0.From.Teachers.To.Teachers.part2.rar.html No Password - Links are Interchangeable
-
Google Docs for Teachers MP4 | Video: AVC 1280x720 | Audio: AAC 44KHz 2ch | Duration: 1.5 Hours | Lec: 30 | 417 MB Genre: eLearning | Language: English Revolutionise how you create files, collaborate and share documents with your students and colleagues. Google Docs has truly transformed how I create documents, store, access and share files and collaborate with colleagues. In over 20 years of teaching this is one of, if not the biggest, positive change that has come to my classroom. I would like to give you the opportunity to also dramatically improve how you interact with and manage your word processed documents. Your students will love sharing and creating with you and their classmates. Share my expertise and over 20 years teaching experience to make you, and potentially your workplace, effectively utilise the cloud-based features integral to Google Docs' ongoing success. Google Docs is cloud-based word processing software created by Google. It allows users to store files in "the cloud", share files with other collaborators and edit documents with ease. This course is suitable for all involved in education and I have developed the course to be applicable on both a personal level as well as having tremendous potential in any school. Students will: Develop the ability to create files and synchronise these across your various devices. Always access the most recent version of a document. Collaborate in real-time with students and colleagues on documents. Share files with other parties setting restrictions and limits as to the access privileges of all groups who can access the file/s. Remove the need to email documents as attachments, simply allow access to the document online. Where necessary, convert existing Microsoft Word documents into Google Docs format. This course will positively change how you interact with your documents and the information you work with on a daily basis. You will save time, money and reduce your stress levels by working smarter rather than harder I look forward to assisting you to develop an understanding of, and the ability to efficiently use Google Docs. You students will undoubtedly thank you for your efforts to advance your own skills. Download link: http://uploaded.net/file/ojmruv08/1rvfy.Google.Docs.for.Teachers.part1.rar]1rvfy.Google.Docs.for.Teachers.part1.rar http://uploaded.net/file/g0wojzth/1rvfy.Google.Docs.for.Teachers.part2.rar]1rvfy.Google.Docs.for.Teachers.part2.rar http://uploaded.net/file/9yimf2jf/1rvfy.Google.Docs.for.Teachers.part3.rar]1rvfy.Google.Docs.for.Teachers.part3.rar http://uploaded.net/file/1xhna2dm/1rvfy.Google.Docs.for.Teachers.part4.rar]1rvfy.Google.Docs.for.Teachers.part4.rar http://uploaded.net/file/blpjk7ke/1rvfy.Google.Docs.for.Teachers.part5.rar]1rvfy.Google.Docs.for.Teachers.part5.rar http://rapidgator.net/file/2ad94645c08c7153161d8ffaa1815e14/1rvfy.Google.Docs.for.Teachers.part1.rar.html]1rvfy.Google.Docs.for.Teachers.part1.rar.html http://rapidgator.net/file/daf65363545c3a77b934a1c745a177c2/1rvfy.Google.Docs.for.Teachers.part2.rar.html]1rvfy.Google.Docs.for.Teachers.part2.rar.html http://rapidgator.net/file/992cb475a21800f9bf3859e5361c7a18/1rvfy.Google.Docs.for.Teachers.part3.rar.html]1rvfy.Google.Docs.for.Teachers.part3.rar.html http://rapidgator.net/file/b2f579810f6d7a1024413fe57366eb0d/1rvfy.Google.Docs.for.Teachers.part4.rar.html]1rvfy.Google.Docs.for.Teachers.part4.rar.html http://rapidgator.net/file/540583a67d7325d30ee1e64b0312a510/1rvfy.Google.Docs.for.Teachers.part5.rar.html]1rvfy.Google.Docs.for.Teachers.part5.rar.html http://nitroflare.com/view/B4A5A92BA787261/1rvfy.Google.Docs.for.Teachers.part1.rar]1rvfy.Google.Docs.for.Teachers.part1.rar http://nitroflare.com/view/F9512062B53C035/1rvfy.Google.Docs.for.Teachers.part2.rar]1rvfy.Google.Docs.for.Teachers.part2.rar http://nitroflare.com/view/805581E219C04A5/1rvfy.Google.Docs.for.Teachers.part3.rar]1rvfy.Google.Docs.for.Teachers.part3.rar http://nitroflare.com/view/F1BBFCC6EA7C6F7/1rvfy.Google.Docs.for.Teachers.part4.rar]1rvfy.Google.Docs.for.Teachers.part4.rar http://nitroflare.com/view/6DF6EBFD195B288/1rvfy.Google.Docs.for.Teachers.part5.rar]1rvfy.Google.Docs.for.Teachers.part5.rar https://www.bigfile.to/file/bMGXhSfnJA9S/1rvfy.Google.Docs.for.Teachers.part1.rar]1rvfy.Google.Docs.for.Teachers.part1.rar https://www.bigfile.to/file/9wq3cYkh3Y6W/1rvfy.Google.Docs.for.Teachers.part2.rar]1rvfy.Google.Docs.for.Teachers.part2.rar https://www.bigfile.to/file/UHB35ZdB7NWM/1rvfy.Google.Docs.for.Teachers.part3.rar]1rvfy.Google.Docs.for.Teachers.part3.rar https://www.bigfile.to/file/9pfjb5sZdkec/1rvfy.Google.Docs.for.Teachers.part4.rar]1rvfy.Google.Docs.for.Teachers.part4.rar https://www.bigfile.to/file/NdcQnJzKaXqt/1rvfy.Google.Docs.for.Teachers.part5.rar]1rvfy.Google.Docs.for.Teachers.part5.rar Links are Interchangeable - No Password - Single Extraction
-
Google Docs for Teachers MP4 | Video: AVC 1280x720 | Audio: AAC 44KHz 2ch | Duration: 1.5 Hours | Lec: 30 | 417 MB Genre: eLearning | Language: English Revolutionise how you create files, collaborate and share documents with your students and colleagues. Google Docs has truly transformed how I create documents, store, access and share files and collaborate with colleagues. In over 20 years of teaching this is one of, if not the biggest, positive change that has come to my classroom. I would like to give you the opportunity to also dramatically improve how you interact with and manage your word processed documents. Your students will love sharing and creating with you and their classmates. Share my expertise and over 20 years teaching experience to make you, and potentially your workplace, effectively utilise the cloud-based features integral to Google Docs' ongoing success. Google Docs is cloud-based word processing software created by Google. It allows users to store files in "the cloud", share files with other collaborators and edit documents with ease. This course is suitable for all involved in education and I have developed the course to be applicable on both a personal level as well as having tremendous potential in any school. Students will: Develop the ability to create files and synchronise these across your various devices. Always access the most recent version of a document. Collaborate in real-time with students and colleagues on documents. Share files with other parties setting restrictions and limits as to the access privileges of all groups who can access the file/s. Remove the need to email documents as attachments, simply allow access to the document online. Where necessary, convert existing Microsoft Word documents into Google Docs format. This course will positively change how you interact with your documents and the information you work with on a daily basis. You will save time, money and reduce your stress levels by working smarter rather than harder I look forward to assisting you to develop an understanding of, and the ability to efficiently use Google Docs. You students will undoubtedly thank you for your efforts to advance your own skills. DOWNLOAD http://rapidgator.net/file/7baeaabf51124ab12123322e26077295/3x9o7.Google.Docs.for.Teachers.rar.html https://bytewhale.com/kk74zfk72q8e/3x9o7.Google.Docs.for.Teachers.rar http://uploaded.net/file/j2llruoj/3x9o7.Google.Docs.for.Teachers.rar https://www.bigfile.to/file/E5WukHDMzAUT/3x9o7.Google.Docs.for.Teachers.rar http://nitroflare.com/view/C9F4F805AB312FB/3x9o7.Google.Docs.for.Teachers.rar http://uploadgig.com/file/download/3f2dc28Cc3A379b6/3x9o7.Google.Docs.for.Teachers.rar
-
Udemy - Help Kids Learn: Minecraft Basics For Parents & Teachers .MP4, AVC, 1000 kbps, 1280x720 | English, AAC, 64 kbps, 2 Ch | 38 Lectures | 3.5 hours | 3.11 GB Instructor: Ryan Carter Help kids learn while they play Minecraft, fix problems, get cool skins, & find clean videos too. You've heard of Minecraft. The game has taken over the world, and captured every kid's imagination. Maybe you don't have any clue what it is, but you don't want to ask the kids to explain it, because they will give you THAT look (like you're dumb or something) not to mention, they aren't the best with details. Yeah, we've all been there. I'll give you the scoop, step by step on what Minecraft is, what it is good for, and how to get started, so you can try it out for yourself if you want. I'll treat you like an adult and show you what the kids are up to. Here's what you'll get in this course Know the basics to help your kids through a tough spot. Contact a Minecraft Expert with questions or problems about the game Understand what it is and why it is good for kids academically and socially. Be hip to the kids and in the know. Be cool. Forever. Be able to fix problems and troubleshoot for devastated young players (who may or may not be weeping uncontrollably). Play Minecraft with the best of them. Be parent/teacher of the year. Everything you need to help the kids (and even have a little fun yourself) Instead of listening to high-pitched 12 year olds on YouTube talk for hours on end and never get to the point, I'll give you everything you need to know about finding diamonds in a concise, useful format that allows you to pause the video, and try it out yourself. This is the de facto crash course in video game awesomeness from a parent of 5 and veteran Minecrafter. Whether you are a parent, a teacher, an aunt, uncle, grandparent or godparent I've got you covered. I bring in special guests to help where needed as well. If you're too busy to sit down and play -- totally understandable -- you still won't be in the dark (where the bad guys are), because you'll have a great reference for later when you need it. Every essential skill is covered in just enough detail to move on with your day. I don't cover every single thing so you'll have some surprises to discover on your own if you want to. I'll even show you how to fix problems, repair corrupted files in seconds, and literally save Minecraft worlds so you never ever lose them again, and tons more. You'll be the Minecraft hero and you won't even have to wear a cape. Unless you're into that or whatever. What are the requirements? How to turn on and use a computer. Super basics. Extra points if you can browse the web, get your email, or update Facebook. A willingness to learn and explore Valid email address and credit card/Paypal (only if you haven't already purchased Minecraft on PC, Mac, XBOX, or PS4). What am I going to get from this course? Over 38 lectures and 3.5 hours of content! Know the basics to help your kids through a tough spot. Contact a Minecraft Expert with questions or problems about the game Understand what it is and why it is good for kids academically and socially. Be hip to the kids and in the know. Be cool. Forever. Be able to fix problems and troubleshoot for devastated young players (who may or may not be weeping uncontrollably). Play Minecraft with the best of them. Be parent/teacher of the year. http://www.nitroflare.com/view/6B998A16AE8AAA7/lqpka.Udemy..Help.Kids.Learn.Minecraft.Basics.For.Parents..Teachers.part1.rar http://www.nitroflare.com/view/8FD522071DD5CC1/lqpka.Udemy..Help.Kids.Learn.Minecraft.Basics.For.Parents..Teachers.part2.rar http://www.nitroflare.com/view/364334147287A21/lqpka.Udemy..Help.Kids.Learn.Minecraft.Basics.For.Parents..Teachers.part3.rar http://www.nitroflare.com/view/D2C7C293B56453E/lqpka.Udemy..Help.Kids.Learn.Minecraft.Basics.For.Parents..Teachers.part4.rar http://rapidgator.net/file/1666d097007c2b1131e223fd397f7192/lqpka.Udemy..Help.Kids.Learn.Minecraft.Basics.For.Parents..Teachers.part1.rar.html http://rapidgator.net/file/e0d19615e8b084de2c493b6583273df6/lqpka.Udemy..Help.Kids.Learn.Minecraft.Basics.For.Parents..Teachers.part2.rar.html http://rapidgator.net/file/43763d6379c2da732867ee7545fac3a0/lqpka.Udemy..Help.Kids.Learn.Minecraft.Basics.For.Parents..Teachers.part3.rar.html http://rapidgator.net/file/20063ceb482245c7bea97b35080e4700/lqpka.Udemy..Help.Kids.Learn.Minecraft.Basics.For.Parents..Teachers.part4.rar.html https://www.uploadable.ch/file/M2KPQem5pEzs/lqpka.Udemy..Help.Kids.Learn.Minecraft.Basics.For.Parents..Teachers.part1.rar https://www.uploadable.ch/file/3yjnUBRmEFah/lqpka.Udemy..Help.Kids.Learn.Minecraft.Basics.For.Parents..Teachers.part2.rar https://www.uploadable.ch/file/AdeA3dtCK9ru/lqpka.Udemy..Help.Kids.Learn.Minecraft.Basics.For.Parents..Teachers.part3.rar https://www.uploadable.ch/file/dEvjnbX89bpp/lqpka.Udemy..Help.Kids.Learn.Minecraft.Basics.For.Parents..Teachers.part4.rar
-
Cia??o pedagogiczne / Les profs / Serial Teachers (2013) PL.720p.BRRip.XViD.AC3-NOiSE | POLSKI LEKTOR Les.profs.2013.PL.720p.BRRip.XViD.AC3-NOiSE Info.Opis: Dane techniczne: Screeny: zobacz screeny z tego release Opis uploadu: POBIERZ / DOWNLOAD: jeden link * bez archiwum * pobierasz i oglÄ?dasz http://5fantastic.pl/klubowicze-20661-10061113 ZAPRASZAM
- 6 odpowiedzi
-
- cialo
- pedagogiczne
- (i 5 więcej)
-
English Course * Navigate * Pre-Intermediate B1 TEACHER'S PACK * BOOKS with AUDIO and VIDEO 2015 | English | MP3, MP4, PDF 428 pages | 720.2 MB Navigate is a brand new, six-level General English course tailored exclusively to adults. The course takes an innovative approach to reading and listening based on academic research as to how adults best learn languages. It teaches reading and listening from the bottom up, giving learners the skills they need to understand the next text they will read and hear, not just the one they are reading or hearing now. The content has been extensively piloted and reviewed in ELT classrooms across the world, giving teachers the confidence that it really works. http://rapidgator.net/file/02f614d1abbd3baa52944dd493a74978/69vm2.navigatepreteapack2015a.rar.html http://rapidgator.net/file/e39c83de0100edf8251eaf8f9e9aad7c/69vm2.navigatepreteapack2015b.rar.html http://rapidgator.net/file/004b551421a7c07b04b4d79050e2da81/69vm2.navigatepreteapack2015c.rar.html http://rapidgator.net/file/0a1ddd15992e1fc31f19df4dd70a6114/69vm2.navigatepreteapack2015d.rar.html http://rapidgator.net/file/98749cb901228b6ea4a45b33bb4e96fb/69vm2.navigatepreteapack2015e.rar.html http://rapidgator.net/file/69a97fc055e12baf25abd87cc0071240/69vm2.navigatepreteapack2015f.rar.html http://rapidgator.net/file/0c26a7c069188bb1fd5d12eea97f7ccc/69vm2.navigatepreteapack2015g.rar.html http://www.nitroflare.com/view/C4676401B108492/69vm2.navigatepreteapack2015a.rar http://www.nitroflare.com/view/58715254DA267D3/69vm2.navigatepreteapack2015b.rar http://www.nitroflare.com/view/5E5C898665A4D14/69vm2.navigatepreteapack2015c.rar http://www.nitroflare.com/view/A48D1AF583D53AB/69vm2.navigatepreteapack2015d.rar http://www.nitroflare.com/view/AB10877FEC4F8D8/69vm2.navigatepreteapack2015e.rar http://www.nitroflare.com/view/1B9B9EAF99F744C/69vm2.navigatepreteapack2015f.rar http://www.nitroflare.com/view/737343DB425C57D/69vm2.navigatepreteapack2015g.rar http://uploaded.net/file/wki3qiha/69vm2.navigatepreteapack2015a.rar http://uploaded.net/file/xrvovsba/69vm2.navigatepreteapack2015b.rar http://uploaded.net/file/4zsn63oy/69vm2.navigatepreteapack2015c.rar http://uploaded.net/file/qib5dtwe/69vm2.navigatepreteapack2015d.rar http://uploaded.net/file/tl0wvyaq/69vm2.navigatepreteapack2015e.rar http://uploaded.net/file/4z0uxi4a/69vm2.navigatepreteapack2015f.rar http://uploaded.net/file/v5evx0i4/69vm2.navigatepreteapack2015g.rar http://www.uploadable.ch/file/2DY7UyKRSQ7Y/69vm2.navigatepreteapack2015a.rar http://www.uploadable.ch/file/XKxkD6fJtVak/69vm2.navigatepreteapack2015b.rar http://www.uploadable.ch/file/czkDzfECQnWK/69vm2.navigatepreteapack2015c.rar http://www.uploadable.ch/file/t8PNsP3QfNS4/69vm2.navigatepreteapack2015d.rar http://www.uploadable.ch/file/ZNekeMK7bQtN/69vm2.navigatepreteapack2015e.rar http://www.uploadable.ch/file/WHeqwzV98Jeq/69vm2.navigatepreteapack2015f.rar http://www.uploadable.ch/file/qpVsKWNkyFFz/69vm2.navigatepreteapack2015g.rar
-
Ratujmy Westbrook High / Teachers aka Saving Westbrook High (2013) PL.WEB-DL.XviD-KOKOSPOKO | POLSKI LEKTOR Manny Cortez jest ojcem dw??ch nastoletnich dziewczynek, Seleny i Gabrielli, kt??re wkr??tce rozpocznÄ? naukÄ? w liceum. Pragnie, aby chodzi??y one do dobrej szko??y. Wyb??r pada na liceum Westbrook, do kt??rego Manny ma ogromny sentyment, r??wnie?? ze wzglÄ?du na swojego ojca, kt??ry by?? tam trenerem dru??yny futbolowej. Aby dziewczynki mia??y bli??ej do szko??y, postanawia siÄ? przeprowadziÄ?. Jego ??ona i dzieci nie sÄ? jednak zachwycone tym pomys??em. NFO: CO W SRODKU: DOWNLOAD: http://uploaded.net/file/zhpdc7zc/savingwinB-xpl.avi http://lunaticfiles.com/r8j27l6eotmy/savingwinB-xpl.avi.html https://rapidu.net/2355151545/savingwinB-xpl.avi http://www.fileshark.pl/pobierz/2506688/wip9w/savingwinb-xpl-avi http://turbobit.net/8tamf9dzsbfo/savingwinB-xpl.avi.html http://catshare.net/mHllbAsq1KdRWt4u/savingwinB-xpl.avi HASLO/PASS: HELLO Pliki sa identyczne na wszystkich hostingach/serwerach, wiec mozesz pobierac jednoczesnie ze wszystkich. Jesli brakuje pliku na jednym serwerze, to sciagnij go z innego, jaki podalem wyzej. Bedzie pasowac.