LehrPuls

Live polling in the lecture hall — local, no cloud.

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Guides › Formula

Formula

With the formula, participants answer with a mathematical term. LehrPuls checks whether it is equivalent to the solution — the notation may differ.

  1. 1

    Create a new question

    Step 1 of 14

    Open Topics & Questions, select the topic on the left where the question belongs, and click + Question.

    Screenshot Cockpit 11Topics & Questions22Select topic33New question
    Cockpit
  2. 2

    Choose the question type

    Step 2 of 14

    The editor opens. Click the Question type field and choose Formula (equivalent notations count).

    Screenshot Cockpit 11Formula (equivalent notations count)
    Cockpit
  3. 3

    Enter solution and variables

    Step 3 of 14

    Choose the question type Formula (equivalent notations count). Under Solutions there is one term per line (up to ten); below it the editor shows how it reads the term. Variables lists the allowed names — if left empty, the letters from the solutions apply. Notation: `^` for exponents, `*` or nothing for multiplication. The formula also offers Ask for confidence.

    Screenshot Cockpit 11Title22Question text33Solution(s)44read like this55Variables66Preview
    Cockpit
  4. 4

    Save

    Step 4 of 14

    Click Save (or press Cmd+Enter or Ctrl+Enter). The question is now in the topic and can be added to any playlist.

    Screenshot Cockpit 11Save
    Cockpit
  5. 5

    Start the session: participants join

    Step 5 of 14

    After the start, the projector shows the QR code and the address. Participants scan the code with their smartphone and they are in — no app, no account. How to start a session is shown in the guide Running a session.

    Screenshot Projector
    Projector
    Screenshot Smartphone
    Smartphone
  6. 6

    Show the question

    Step 6 of 14

    In the live cockpit the question is listed on the left. The large Show question button — or the space bar — opens it on all devices and shows it on the projector.

    Screenshot Cockpit 11Show question (space bar)22connected devices
    Cockpit
  7. 7

    Answer on the smartphone

    Step 7 of 14

    The smartphone shows an input field; below it a preview shows the typeset term — or a hint if it cannot be read. Participants send as soon as the term is right.

    Screenshot Smartphone 11Type the term22Preview33Send
    Smartphone
  8. 8

    The answer has arrived

    Step 8 of 14

    After sending, the smartphone confirms receipt. Until the question is closed, Change answer still allows corrections.

    Screenshot Smartphone
    Smartphone
  9. 9

    Answers come in

    Step 9 of 14

    In the cockpit you see how many participants have already answered; on the right under Responses every single answer is listed. Only you see this — the projector just counts and shows no distribution yet.

    Screenshot Cockpit 11Submissions so far22Close (space bar)33single answers
    Cockpit
  10. 10

    The projector while collecting

    Step 10 of 14

    The projector shows the question and the options; at the bottom LehrPuls counts the answers received.

    Screenshot Projector
    Projector
  11. 11

    Close the question, then reveal

    Step 11 of 14

    Close ends the submission; after that LehrPuls accepts no more answers. The main button now reads Show results — one more press of the space bar shows the result.

    Screenshot Cockpit 11Show results
    Cockpit
  12. 12

    The reveal on the projector

    Step 12 of 14

    The reveal groups identical notations and shows for each notation how often it came in and whether it is correct — together with the solution.

    Screenshot Projector
    Projector
  13. 13

    The reveal on the smartphone

    Step 13 of 14

    The smartphone shows the verdict on the own input and the solution.

    Screenshot Smartphone
    Smartphone
  14. 14

    The reveal in the cockpit

    Step 14 of 14

    The cockpit shows the result as well. The space bar moves on to the next question; after the session everything is under Analytics.

    Screenshot Cockpit
    Cockpit