vILT Knowledge Checks: Where to Place Them in a Live Virtual Session
vILT knowledge checks are short, low-stakes questions you put into a live virtual session to see whether learners understood what you just taught. A workable default is a one-item poll at the end of each 15-minute teaching block, plus a short scored check before the break and another before the close. This guide gives you a 90-minute run-sheet you can copy.
Most advice on the topic says to interact every few minutes and stops there. It rarely says which questions to score, what to record, or how Zoom and Teams behave when you relaunch a quiz. This post covers those gaps for live instructor-led courses, using each platform’s own documentation, checked in October 2026.
Key takeaways
- Separate polls, which steer the facilitator, from scored checks, which record each learner’s answer. They need different settings and different records.
- Plan about one formal item every 15 minutes, with a chat prompt or reaction in between. No study fixes the best interval for live sessions, so treat it as an assumption to adjust.
- Budget the time: the 90-minute plan below uses about 20 minutes (roughly a fifth) on 13 items, 8 of them scored.
- Record the item ID, the response count against attendance, and the decision you made. A bare percentage is not enough.
What are vILT knowledge checks, and how do they differ from polls?
A vILT knowledge check is one or more short questions, asked during a live virtual session, that test what learners just studied. A poll steers the facilitator and is usually anonymous. A scored check records each learner’s answer. Both run in the same meeting tool, but they serve different decisions and need different records.
Research supports the principle of testing during instruction. In a 2013 study in PNAS by Szpunar, Khan and Schacter, 80 Harvard undergraduates watched a 21-minute recorded statistics lecture in four segments of about 5.5 minutes. Students quizzed after each segment reported mind wandering on 19% of probes, against 39% to 41% for students who were not quizzed between segments. On the final cumulative test they scored 90%, against 76% for a restudy group and 68% for a group that did unrelated arithmetic.
That was a recorded lecture watched alone, not a live session, so it supports the principle rather than a schedule. A broader review, Dunlosky and colleagues (2013), rated practice testing as a high-utility learning technique, though not in vILT specifically.
How often should vILT knowledge checks appear in a live session?
No study sets the ideal interval for live virtual training, so treat any number as a planning assumption. A workable default is one formal item about every 15 minutes, with a quick chat prompt or reaction between them, so no stretch of pure lecture runs much past 8 minutes.
Practitioner pages reviewed in October 2026 recommend anything from an interaction every three minutes to one every ten, and none tied the interval to a study of live sessions. The Szpunar study quizzed every 5.5 minutes with six questions each time, which is denser than most providers can afford. A live facilitator can also read chat and faces. If polls show confusion, shorten the blocks to 10 minutes before adding questions.
How much session time should checks take?
Plan on about a fifth of the session. For the 90-minute run-sheet below, the allowances are 2 minutes per poll (one to answer, one to discuss), 1 minute per scored item, and 2 minutes for a closing prompt. Five polls cost 10 minutes, eight scored items cost 8, and the closing prompt costs 2, for 20 minutes of 90, or 22%.
These allowances are planning assumptions, not measured values. Time a rehearsal with your own audience size, since a large cohort answers more slowly than a small one. If the plan crowds out content, cut polls first and keep the scored checks.
Where do vILT knowledge checks go in a 90-minute session?
Put a poll near the end of each teaching block, a three-item scored check before the break, and a five-item scored check before the close. That gives 13 items in 90 minutes, about 9 an hour, 5 of them scored. Adjust the clock for your session length; the sequence is what matters.
| Clock | Segment | Check | Items | Mode | What to record |
|---|---|---|---|---|---|
| 0:00 to 0:05 | Opening | Prior-knowledge or confidence poll | 1 | Poll, anonymous | Response count and answer split |
| 0:05 to 0:20 | Teaching block 1 | Recall or apply poll at the block’s end | 1 | Poll, anonymous | Percent correct, reteach or move on |
| 0:20 to 0:35 | Teaching block 2 | Apply poll at the block’s end | 1 | Poll, anonymous | Percent correct, reteach or move on |
| 0:35 to 0:40 | Check A | Short scored check on blocks 1 and 2 | 3 | Scored, identified | Each learner’s answers, item IDs |
| 0:40 to 0:45 | Break | Producer exports Check A and flags weak items | 0 | None | Export file, reteach list |
| 0:45 to 1:00 | Teaching block 3 | Reteach flagged items, then an apply poll | 1 | Poll, anonymous | Percent correct |
| 1:00 to 1:15 | Teaching block 4 | Apply poll at the block’s end | 1 | Poll, anonymous | Percent correct |
| 1:15 to 1:25 | Check B | Scored exit check across the session | 5 | Scored, identified | Each learner’s answers, score against criterion |
| 1:25 to 1:30 | Close | Muddiest-point prompt typed in chat | 1 open | Unscored | Saved chat text |
Check A sits before the break so a producer or co-facilitator can review it while learners step away; a lone trainer cannot teach, launch and read results at once. Check B ends at least five minutes before the session ends so a gap can still be addressed.
The opening poll is a confidence check, not a pre-test. If you need to measure learning gain, build matched forms as described in our guide to pre and post course assessments for instructor-led training, and keep those results separate from in-session checks.
Pro tip: Write The Reteach Rule Before The Session. Put a threshold beside each poll in the run-sheet, for example “under 70% correct, reteach with a new example; over 90%, skip the recap.” Choosing the rule in advance stops you from rationalizing a weak result live. The 70% and 90% figures are examples, not standards.
Which item types work for vILT knowledge checks in Zoom and Teams?
Single-choice items work everywhere and suit recall and apply questions. Teams adds ranking, rating and word-cloud polls, and both Zoom and Teams let you mark correct answers so a quiz can score learners. Pick the item type for what it tests, then check what your platform supports.
| Item type | Best for | Built-in support, October 2026 | Watch for |
|---|---|---|---|
| Single-choice question | Recall, and apply with a short scenario | Teams: multiple-choice poll or quiz, up to 12 options. Zoom: quiz with a set answer | Keep to three or four options; long option lists slow the room |
| Ranking item | Sequencing steps in a process | Teams: ranking poll, first to fifth | Five positions at most; longer sequences need chat or a worksheet |
| Rating item | Confidence before and after a block | Teams: rating poll, scale up to 5 | Measures confidence, not skill |
| Word cloud or open prompt | Muddiest point, quick brainstorming | Teams: word cloud poll. Any platform: typed chat answer | Cannot be scored automatically |
Platform facts above come from Microsoft’s Teams polling page and Zoom’s quiz help article. They change often and depend on plan and settings, so confirm them before building around one feature. Zoom lists limits of 50 quizzes per meeting and 50 questions per quiz, and requires a Pro, Business, Education or Enterprise account.
For application-level items, write short scenarios with one closed decision, as covered in our guide to scenario-based questions for training courses. A two-sentence scenario fits a poll slide. A paragraph-long one does not.
When should a check be a poll and when a scored check?
Use a poll when the only decision is what the facilitator does next. Use a scored check when you need to know what each learner can do, for feedback or records. Anonymous or identified answers follow from that decision, not the other way around.
| Question | Poll | Scored check |
|---|---|---|
| Decision it supports | Reteach or move on | Individual feedback, follow-up, completion evidence |
| Answers | Anonymous is fine and often better | Identified, so each answer ties to a learner |
| Item source | Written for the slide | Drawn from a reviewed bank with an ID |
| Record kept | Aggregate result and your decision | Per-learner answers, item IDs, timestamps |
The most common error is running a scored check anonymously. Zoom lets a host require anonymous answers, and Teams lets the organizer choose whether to record respondent names. Once answers are anonymous you cannot score an individual or follow up with someone who struggled, so decide before you launch.
Three to five items cannot support a pass or fail decision on their own. Treat scored checks as feedback and keep any formal result for a separate final assessment.
What should you record from each vILT knowledge check?
Record enough to repeat the decision later: which item was asked, how many learners answered out of how many attended, what the result was, and what you did about it. A percentage alone cannot be audited or reused, because nobody can tell which question or cohort produced it.
A usable record per check has these fields:
- Session date, course name and version, cohort and facilitator
- Item ID and version, so the result stays tied to the exact wording
- Mode (poll or scored) and whether answers were anonymous
- Responses received against learners present, since a 60% correct result from 5 of 30 learners means little
- Percent correct and the most-chosen wrong option
- The decision taken (reteach, move on, follow up) and who took it
Item IDs and versions are the same fields an item bank for a training company uses, which is why checks drawn from a bank are easier to reuse and compare across cohorts. If you award continuing education units, your accreditor’s record rules apply to scored results as well, so see our post on IACET assessment evidence for CEUs before you decide what to keep and for how long.
Pro tip: Export Before You Relaunch. Zoom’s help article says that when a quiz is relaunched, its report shows only the last occurrence. If a technical glitch forces a second run, export the first run’s results before you launch again, or the first cohort’s answers are gone from the report.
What goes wrong with vILT knowledge checks?
Most failures come from logistics rather than question quality. Rehearse the full sequence once with a colleague on the platform and devices your learners will use, and watch for these.
- Launching a poll with no time to answer, so only fast readers respond
- Asking a question the lesson never taught, which tests prior knowledge instead of the session
- Managing polls from a phone, when Zoom says hosts need the desktop app to manage them
- Giving learners only one way to answer; chat or voice should always be available as a backup
What should you do next?
Copy the run-sheet for your longest course and mark which checks you will score. Draft the five exit items first, tagged to learning objectives, then work backward to the polls. Load every poll and quiz into the meeting tool before the session and rehearse once with a colleague.
If scored checks should be stored in an item bank and tied to learner records outside the meeting tool, SimpliAssess’s features page lists item banking, test management, examinee management and API-based delivery. If you also schedule and run the live sessions, SimpliTrain’s page for training companies lists virtual classrooms (vILT), assessments and exams, and question banks among its features.
Frequently asked questions
What is a knowledge check in vILT?
A knowledge check in virtual instructor-led training is a short question, or a few, asked during a live session to confirm learners understood what was just taught. It is low stakes. It can be an anonymous poll that guides the facilitator or a scored quiz that records each learner’s answers.
How many knowledge check questions should a one-hour virtual class have?
No standard sets a number. A planning default is about nine items an hour, roughly five of them scored, which takes about a fifth of session time. Treat it as a starting point and adjust after a rehearsal, based on audience size, content difficulty and answer time.
Should vILT knowledge checks be anonymous?
Polls that only guide the facilitator can be anonymous, which often encourages honest answers. Scored checks should be identified, because anonymous answers cannot be tied to a learner for feedback or records. Zoom and Teams both let you choose this before launch, so decide it while building the check.
Can you score knowledge checks in Zoom or Teams?
Yes. Zoom lets a host set correct answers so a poll works as a quiz, and its reports include each participant’s answers and submission times. Teams offers a multiple-choice quiz where you mark the correct answers. Both are basic scoring tools, so export results promptly and keep formal assessments elsewhere.
Do knowledge checks improve learning in virtual classes?
Evidence supports testing during instruction. A 2013 PNAS study found that students quizzed between segments of a recorded lecture mind-wandered less and scored higher on a final test, and a 2013 review rated practice testing high utility. Neither studied live vILT, so results there may differ.
How do you run a knowledge check without a polling feature?
Show the question on a slide and ask learners to type the answer in chat, or to hold their answer until you say send so they respond independently. This works on any meeting platform. You lose automatic tallies and scoring, so save the chat transcript if you need a record.
