In many online courses—especially professional or skill-based ones—long lectures (30–90 minutes) are still common because instructors want to deliver their full thinking process and knowledge in one complete flow. However, when that content is uploaded to an online learning platform, overly long videos often become one of the biggest reasons students drop out before finishing the course. So: This article provides a neutral analysis based on real online learning behavior and practical experience building courses on Ourdemy. Why Long Lectures Often Don’t Work Well Online In offline classrooms, learners are “held” within a fixed space and time. Online learning behavior is completely different. Common problems with overly long lecture videos: […]
スライド+顔出し:Webカメラはいつオンにするべき?
Whether you turn on your webcam depends on the goal of the lesson, the learning stage, and the learning experience you want to create. This article will help you: What Benefits Does Turning on the Webcam Bring? 1. Increases Presence & Trust When learners can see the instructor’s face: 2. Conveys Emotion & Attitude Some types of content require: In these cases, eye contact, facial expressions, and speaking rhythm matter more than slides. 3. Personalizes the Learning Experience Students often feel more connected to: This directly impacts: When SHOULD You Turn on the Webcam While Showing Slides? You should turn on the webcam if the video serves one of the […]
自宅で講義動画を撮影するための最低限の準備とは?
When starting an online course, many instructors struggle with: 👉 The real question is not “what equipment should I buy?”, but: “What level of preparation is enough to start recording serious lecture videos?” This article will help you clarify: What does “enough” mean for lecture videos? Lecture videos are not promotional videos. Their purpose is to: So, “enough” means: 👉 If you meet these three conditions, you’re ready to start recording. Essential equipment you need to record lecture videos at home Instead of thinking about individual items, group them into these 4 core areas. 1. Audio (Microphone) This is your #1 priority. Students may tolerate average video quality, but poor […]
自分で講義動画を撮影する際のシンプルなカメラアングルの選び方
Recording lecture videos is no longer something “only filmmakers” can do. With just a smartphone or webcam, any teacher, lecturer, or creator can get started. However, in reality: many videos with great content still cause viewers to leave early, simply because the camera angle isn’t appropriate. This article will help you: No complicated setup required. Just choose the right angle. Why Is Camera Angle More Important Than You Think? Camera angle doesn’t just determine whether a video “looks good.” It directly affects learning quality. Specifically, it influences three key factors: 1. Learner Focus When the angle is tilted, shaky, or poorly framed, learners must “spend energy” adjusting—rather than focusing on […]
講義動画は縦向き?横向き?どちらで撮影すべき?
When starting to record course videos, many instructors and creators face a small question that actually has a big impact on the learning experience: 👉 Should you film vertically or horizontally? Vertical feels like TikTok or Reels — familiar to mobile users. Horizontal feels more “lecture-style” — like Zoom, YouTube, or traditional online courses. There isn’t one correct answer for everyone. The right choice depends on your learning goals, your content, and your learners’ behavior. Let’s explore which format is right for you. 1. Why Does Video Framing Matter So Much? Video framing isn’t just a technical detail. It directly affects: When uploading videos into a lesson on Ourdemy, the […]
初心者講師のためのチュートリアル動画撮影チェックリスト
From preparation → recording → reviewing, helping you feel confident on camera from your very first video Recording tutorial videos is no longer a “privilege” reserved for YouTubers or professional studios. Today, many teachers, experts, and independent educators are sharing knowledge through video — from online courses and short lessons to in-depth instructional content. To help you create quality content, this article provides a basic but practical tutorial video recording checklist that will help you: 1. Before Recording: Proper Preparation Saves 50% of the Effort 1.1. Clearly Define the Goal of the Video Before turning on the camera, answer one single question: What will learners be able to do after […]
講義動画の長さはどれくらいが適切?
How long should a lecture video be? If it’s 5 minutes, it might feel too short. If it’s 30 minutes, you may worry that learners will drop off halfway through. The reality is: there is no single “standard” length that works for everyone — but there are clear principles that help you choose the most appropriate length for each type of content. This article will help you: Why Do Teachers Worry About Video Length? There are three main reasons: 1. Fear That Short Videos Feel “Low Value” Many instructors worry that: 2. Being Used to Long Offline Classes In face-to-face teaching, instructors typically: This often leads teachers to transfer the […]
講義動画向け無料BGMの入手先:正しく選び、安全に使うために
When used at the right moment – for the right purpose – in the right educational context, background music can bring positive effects: However, choosing the wrong background music can lead to: This article focuses on answering a very practical question: Which background music sources can be used for lecture videos for free, legally, and without platform restrictions (website, LMS, learning platforms)? What Does “Free” Background Music Actually Mean? When searching for “free background music,” many people misunderstand it as: Free = can be used however you want In reality, free music for videos usually falls into one of the following categories: For lecture videos — especially online courses, paid […]
講義動画にBGMは必要?それとも不要?
When producing lecture videos (online courses, internal training videos, recorded workshops, etc.), a common question arises: Should I use background music in lecture videos? It sounds simple, but in reality this decision directly affects: This article provides a neutral analysis, based on both educational principles and learner experience, to help you decide when you should – and should not – use background music, and how to use it properly if needed. Why Do People Want to Add Background Music? Background music is often added with the following expectations: 👉 These reasons are not wrong. The issue lies in the context and the way music is used. When You SHOULD Use […]
画面録画+講師のワイプ表示の撮り方
A practical guide for online course creators Today, lecture videos are no longer just simple screen recordings. Many now include a small video of the instructor in the corner to improve the learning experience. This guide will help you understand which recording method fits your teaching goals, without requiring complex tools. 1. Why include a teacher video? It’s not always necessary, but in many cases it helps: 2. Common recording methods Method 1: Record screen + webcam together Record your screen and webcam at the same time, placing your video in a corner. Best for Notes 👉 This is the simplest and most reliable method. Method 2: Record separately and […]









