KS3 Lesson Bank

Choose a lesson, then teach it or build a printable worksheet.

Pick a lesson on the left.

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Timer
Alt+0 — 30 seconds
Alt+1 — 1 min   Alt+2 — 2 min
Alt+3 — 3 min   Alt+5 — 5 min
Alt+9 — 10 min

On Windows, Alt+number is more reliable than the Windows key (the OS often intercepts Win+digit).

Choose a Do Now

Paste a link to this lesson's slides. It is saved in the Lesson Bank sheet (Slides tab), so it is there next time.

Works inside the page: Google Slides, a .pptx in Google Drive, and PowerPoint for the web Embed links (in PowerPoint: File › Share › Embed, then paste the code or its address). Leave the box empty and save to remove a link.

Level
?
Choose 6 cards or press Quickstart
Play area
Card tray (face down): top 25, 50, 75, 100 (up to 4); bottom 1 to 10
Your sum

Keyboard: + − * / ( ) work, Backspace undoes, Enter checks.

Chocolate and Soap

On your turn, tap as many column letters or row numbers as you like, then press Take these lines. You can take rows or columns, not both in one turn. Each tapped line loses all its chocolate. You can't take a line that has the soap in it.

Nim

Two players take turns. On your turn take 1, 2 or 3 counters.

Counters:
Player 1Player 2
How to play: take 1, 2 or 3 counters on your turn. Whoever takes the last counter loses. Each counter you take gets an outline in your colour: blue for Player 1, red for Player 2.

Nasty Negatives

Cross the bridge by choosing the correct answer to each question, working left to right. Each column is one question with three answers. One wrong answer and it's game over. How quickly can you cross?

Time
0.0
Best time
-
Question
0 / 11
Press Start Game

The stopwatch starts when you press Start Game. A wrong answer ends the game, and the time isn't counted. Best time is kept until the page is closed.

Find the primes

Click the grid to start. Then tap every number that is a prime (or square). Tap again to undo. Press Check when you are done. The timer starts on your first tap.

Time
0.0
Picked
0

Check marks each tap: green is right, red is wrong, and dashed green boxes are the ones you missed.

Timer

Set the length, then start. It beeps at the end. Good on the projector.

60:00
Ready

Basic expectations

Read these out before the start of an assessment.

    Beat the Clock

    Sixty seconds. Pick the right answer from the three choices. Keys 1, 2 and 3 work too. Then try to beat your best.

    Time
    60
    Correct
    0
    Best
    0
    Press start

    The best score is kept until the page is closed. Each question has one right answer and two wrong ones, so check the sign on the negatives.

    Guess the Angle

    Estimate the angle between the two arms, then reveal the answer to see how close you were. Answers are multiples of 5.

    Round
    1 / 10
    Score
    0
    Best
    0
    °

    Exact is 3 points, within 5° is 2, within 10° is 1. The dashed arm shows your guess once you reveal.

    Shiver Me Vectors

    Your ship sails by translation: every move slides the whole ship by a column vector. Get it to the treasure chest in the moves you have. Islands, rocks, whirlpools and sea monsters are in the way, and the ship can't leave the map. If the ship would pass one on the way, it is stopped.

    Moves left
    3
    Largest step allowed
    9

    x is how far right (minus for left). y is how far up (minus for down).

    Your ship is two squares long, anchored at its bottom-left square. Reach the chest with that square to win.

    Minus Mayhem: make 10

    Deal the cards, then press Start to turn them over. Use as many or as few cards as you like, each one once, with + − × ÷ and brackets, to make 10. Negative numbers are orange. The cards stay face down until you press Start.

    Target
    ?
    30
    Your cards
    Your sum

    Each card once. You don't have to use them all. Division must give a whole number. Brackets are your friend with negatives. Keys: + − * / ( ) work, Backspace undoes, Enter checks.

    Tools

    Manipulatives and generators for the board. Tap a tool to open it. Each keeps its own settings while you switch.

    Four Fours

    Make each number from 1 to 20 using each 4 exactly once, with + − × ÷ and brackets. Write your sum in the box next to the number. Or tap a number to build it with the tiles.

    Building a sum for: tap a number in the table
    ?

    Type into a box and press Enter to check it. A correct sum ticks and locks. Numbers marked "needs 44" can only be made with joining on.

    Today's Date

    Pick four digits from the date, or use every digit. Use each one exactly once, with + − × ÷ and brackets, to make the numbers in the table. Write your sum in the box next to each number.

    Tap four digits from the date (tap again to take one back).

    Type a sum and press Enter, or leave the box and it checks. Correct sums tick and lock. Dashed numbers are the ones your digits can make (after "Show what is possible").

    Prime Factory!

    You have seconds to decompose as many numbers as possible. Each prime you tap that divides the number buys one more second. Tap a prime that doesn't divide the number and it's game over.

    Score: 0 Best: 0
    ?
    Press Start Game

    Only the primes 2, 3, 5 and 7 are used. The number is taken apart one prime at a time. Tap 2 and 2 and 3 for 12, and the number left gets smaller each time. Finish with 1 to score a point and get the next number. Each prime can be tapped as many times as it divides the number.

    Simultaneous Grids

    Each symbol stands for a number. The totals at the end of each row and column tell you the sums. Work out the value of every symbol.

    Type a value for each symbol, then press Check. Each row and column total is the sum of its symbols, so use the totals to find them. The extra total is the sum of every symbol in the grid.

    ☠ X Marks the Bearing ☠

    Ahoy, matey! Set your course, press Go to sail, and press Stop when you have sailed far enough. Steer clear of the rocks and find the treasure before the rum runs out.

    Level: 1 Gold: 0 Best: 0
    RUM (FUEL)
    100
    N S E W
    045°
    Type it:

    Bearings are measured clockwise from north: 000° is north, 090° is east, 180° is south, 270° is west. Each km sailed uses one fuel. Hitting a rock costs 5 fuel and stops you, so go round.

    Name That Shape

    Quick fire. Look at the shape and tap its name. Watch out: some names are made up.

    Player 1: 0 Player 2: 0 Time: 60
    Press Start

    Tap an answer or press 1, 2, 3 or 4 on the keyboard. A wrong answer gives no point, and the next shape comes up straight away.

    Fraction Wall Climb

    The lava is rising. Find the brick in the row above that matches the fraction, and click it to climb. Get it wrong and the lava rises too.

    Level: 1 Height: 0 / 8 Best: 0
    Press Start

    Click a brick in the lit row above you. Each row is one whole cut into equal parts, so 1/2 = 2/4 = 4/8. Wrong clicks and time both make the lava rise. Reach the top to clear the wall.

    Monty Hall: stay or switch?

    One door hides the prize. The other two hide coats. Pick a door, and the host opens one of the other doors to show a coat. Do you stay or switch?

    GamesWonWon %
    Stayed00–
    Switched00–

    Results are kept in this browser, so they build up over lessons. For a fast run with a history, use Monty Hall in the Tools tab.