How to pick short videos for activity blocks for after-school program leaders in 2026

Learn how to choose short videos for after-school activity blocks, check video lengths, plan transitions and compare simple sorting tools.

By XP Daily · 2026-11-01

XP Daily is published by the makers of DaysAid, QuickDictate and YTSort, which are compared here alongside other tools.

Start with the activity goal and the time available. Choose videos that match the age group, subject and energy level of the children. Check each video's length, leave time for discussion or movement, and arrange the selections into a playlist. A paper list, spreadsheet or YTSort can help organize the videos.

Option	How it orders videos	What to consider
Paper list or sticky note	You rank by hand.	Record titles and lengths yourself.
Spreadsheet	You sort by a length column you fill in.	Check how it handles your planning notes and where you need to access it.
YouTube playlist	You arrange the videos in the playlist.	Use a playlist you own and check the sequence before the activity.
YTSort	Reorders a YouTube playlist you own by video length, shortest or longest first. ^[1]	Shows the before and after order before applying changes. ^[1]

What you need before you start

Picking short videos for after-school activity blocks takes a little planning. Before searching, get a few things ready.

An activity goal. Decide what children should learn, discuss or do after watching. A video might introduce an art project, explain a science idea or give children a movement activity. The goal helps narrow the choices.
The age group. Think about the children's reading level, attention, interests and familiarity with the subject. Check the video's language and content before adding it to the activity.
The time available. Allow time for more than watching. Children may need an introduction, a question afterward or time to try something themselves. The video should leave room for these parts.
A list of possible videos. Collect titles and lengths in one place. YouTube displays video lengths on thumbnails, which makes it easier to compare options.
A place to organize the selections. A paper list, spreadsheet or playlist can keep the chosen videos together. Pick one that is easy to use during a busy afternoon.
A browser, if using a sorting tool. A browser-based tool can help arrange a YouTube playlist by video length. Check its browser requirements before getting started.

Set aside time to review the videos before the activity begins. A short video still needs to be checked for age suitability, subject matter and how it connects to the planned activity.

Step by step

These steps work with any tool, including a pen and a sheet of paper.

Choose the activity. Start with what the children will do. For example, a drawing activity might need a short demonstration, while a science activity might need a video introducing a concept. Decide what the video needs to contribute.

Set the available time. Work backward from the activity's end time. Include the introduction, video, discussion and practical activity. Do not use the entire block for watching unless watching is the main purpose.

Find possible videos. Search for videos that explain the subject or demonstrate the activity. Save several possibilities rather than choosing the first result. Check the content before adding a video to the shortlist.

Write down every video's length. Record the title and duration. YouTube displays the length on each thumbnail. Having the information together makes comparisons easier and avoids repeatedly opening individual videos.

Check the content and age suitability. Watch each candidate before using it with children. Look for language, images and subject matter that are appropriate for the group. Check whether the video explains its subject clearly and whether it supports the activity goal.

Rank the suitable videos by length. Put the shortest videos first if the activity needs a quick introduction or a choice of short demonstrations. Remember that the shortest option is not automatically the most useful. Keep the activity goal in mind when making the final selection.

Decide what to do with longer videos. A longer explanation might work better in another activity block. Keep it at the end of the list or save it for a session with more available time. Do not remove useful material simply because it takes longer.

Check the order before using it. Read the titles and lengths from top to bottom. Make sure the videos follow a sensible sequence. An introduction should come before a demonstration that depends on it.

Prepare the activity around the video. Decide what children will do immediately afterward. A question, drawing exercise, group discussion or practical demonstration can help connect the video to the rest of the session.

Review the activity afterward. Notice whether the video held the group's attention and whether its length left enough time for participation. Adjust the next selection if the activity ran too long or the video did not support the intended goal.

The aim is not simply to find the shortest videos. It is to find videos that fit the available time and give children something useful to do afterward.

Tools that can do it

You do not need software for this. Here are options to consider.

Paper list or sticky note. Write each video title and length, then rank the suitable choices by hand. This is a straightforward way to prepare a small activity list. Nothing is published here about price or limits because it depends on what you already own.

A spreadsheet. A column for the title, a column for length and a sort on the length column gives you a shortest-first list. You can also keep notes about the activity, age group and whether a video has been reviewed. Check how the spreadsheet behaves on your phone if you plan to use it away from your desk. Facts about specific spreadsheet apps are not provided here, so check their own pages for limits and cost.

A YouTube playlist. Put the candidate videos into a playlist you own and arrange them in the order needed for the activity. This keeps the videos together in one place. You can also use a written list alongside the playlist to record which videos have been reviewed.

YTSort. YTSort is one option. Reorders a YouTube playlist you own by video length, shortest or longest first. ^[1]

YTSort can sort only videos within a chosen length range and move the remaining videos to the end. ^[1] It shows the before and after order so you can check it before applying. ^[1] It also shows the total, average, shortest and longest video duration in the playlist. ^[1] These features can help when preparing a playlist for activity blocks with different time allowances.

You can run YTSort from a bookmark, a browser script, or a Chrome Web Store extension. ^[1] The Chrome extension needs Chrome or Edge. ^[1] The script version works in other browsers, including Firefox, once a script helper such as Tampermonkey, Violentmonkey or Greasemonkey is added. ^[1] YTSort is free, and all install options include the same features. ^[1]

Choose a method based on how many videos need organizing and how often the activity list changes. A handwritten list can be enough for a small selection. A spreadsheet can hold extra planning notes. YTSort can reorder an existing YouTube playlist when video length is the main sorting requirement.

Common mistakes to avoid

Choosing by length alone. A short video might not explain the activity clearly. Check the content and age suitability before deciding where it belongs.

Filling the entire activity block with videos. Children may need time to ask questions, move around or try something themselves. Leave room for the activity that follows the video.

Ignoring the order of information. A demonstration may depend on an explanation that comes first. Check the sequence rather than automatically putting every video in shortest-first order.

Skipping the content review. A title and thumbnail do not tell the whole story. Watch the video before showing it to children and check its language and subject matter.

Forgetting about longer selections. Moving longer videos to the end does not decide when they will be used. Keep a separate note of videos that need a longer activity block.

Reordering without checking the result. Read through the new playlist order before using it. Make sure the selected videos still follow the planned activity sequence.

Using the same video choices for every group. Different age groups and activities may need different explanations or demonstrations. Review the selection when the group or activity changes.

Leaving no time for feedback. Ask children what they understood or enjoyed. Their responses can help guide the next activity and the videos chosen for it.

Frequently asked questions

How can after-school program leaders find short videos for activities?

Start with the activity goal and the age group. Search for videos that explain the subject or demonstrate the activity. Check each video's content and length before adding it to a shortlist. Compare the suitable choices and leave enough time for children to discuss or try the activity afterward. A paper list or spreadsheet can help organize the options.

How long should videos be for after-school activity blocks?

There is no single length that works for every activity. The available time, children's ages and purpose of the video all matter. Allow time for an introduction, watching, questions and a follow-up activity. Choose a video that leaves room for children to participate rather than using the entire block for screen time.

Can YTSort put the shortest YouTube videos first?

Yes. YTSort reorders a YouTube playlist you own by video length, with the shortest or longest videos first. ^[1] It can also sort videos within a chosen length range and move the remaining videos to the end. ^[1] This can help organize videos for activity blocks with different time allowances.

Can YTSort check a playlist order before applying changes?

Yes. YTSort shows the before and after order so the playlist can be checked before changes are applied. ^[1] After sorting, it checks the playlist on YouTube and fixes any videos that did not stay in place. ^[1] Reviewing the order remains useful when videos need to follow a particular teaching sequence.

Which browsers work with YTSort?

The YTSort extension needs Chrome or Edge. The script version works in any browser, including Firefox, once a script manager such as Tampermonkey, Violentmonkey or Greasemonkey is installed. ^[1] YTSort can also be run from a bookmark. ^[1] Check the installation instructions for the option being used.

Is YTSort free for after-school program leaders?

Yes. YTSort is free, and all installation options include the same features. ^[1] Its code is public, so it is free software anyone can inspect. ^[1] It can reorder a YouTube playlist you own by video length. ^[1] Check the browser requirements before choosing an installation method.

Should after-school program leaders always choose the shortest videos?

No. A short video can save time, but length alone does not show whether the content is suitable or useful. Check whether the video supports the activity goal and whether children will understand it. Keep related videos in a sensible order, especially when one explanation depends on another. The best selection is the one that supports the planned activity within the available time.

YTSort is free; all install options include the same features. ^[1]

Try YTSort

Sources

YTSort's own description of itself (the product of this site's publisher)