2月28日,Anuli Akanegbu在 edtechmagazine 网站上发表了题为《学习的美景:教室中的投影仪简史》(Vision of Learning: A History of Classroom Projectors),文章回顾了教室中的投影仪的简要历史,读来令人遐思啊!
North Carolina State University
18世纪后期:幻灯(The Magic Lantern)
Photo: Toy Theatre
幻灯是使用最早的电教煤体之一,18世纪末,教育领域翻开始把它运用于教学中。
1925: 胶片放映机(The Filmstrip Projector)
Photo: American Planning Association
1960s: 光学投影仪(The Overhead Projector)
Photo: North Carolina State University
1980s: 数字投影仪(The Data Projector)
Photo: Computer Desktop Encyclopedia
2010: 3D投影仪(The 3D Projector)
Photo: Texas Instruments