Choose a lesson, then teach it or build a printable worksheet.
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On Windows, Alt+number is more reliable than the Windows key (the OS often intercepts Win+digit).
Records it in the Flags tab of the Lesson Bank sheet so it can be fixed later. Changes nothing in the lesson.
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.
Keyboard: + − * / ( ) work, Backspace undoes, Enter checks.
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.
Two players take turns. On your turn take 1, 2 or 3 counters.
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?
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.
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.
Check marks each tap: green is right, red is wrong, and dashed green boxes are the ones you missed.
Set the length, then start. It beeps at the end. Good on the projector.
Read these out before the start of an assessment.
Sixty seconds. Pick the right answer from the three choices. Keys 1, 2 and 3 work too. Then try to beat your best.
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.
Estimate the angle between the two arms, then reveal the answer to see how close you were. Answers are multiples of 5.
Exact is 3 points, within 5° is 2, within 10° is 1. The dashed arm shows your guess once you reveal.
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.
x is how far right (minus for left). y is how far up (minus for down).
Your ship is one square, and it sits exactly on the grid. Reach the chest to win. Islands can cover more than one square.
Each card once. You don't have to use them all. Division must give a whole number. Keys: + − * / ( ) work, Backspace undoes, Enter checks.
Manipulatives and generators for the board. Tap a tool to open it. Each keeps its own settings while you switch.
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.
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.
Pick four digits from the date. Use each one at most once, with + − × ÷ and brackets, to make the numbers in the table. Write your sum in the box next to each number. Turn off "must use all four" to use some of the digits, for example 6 − 1 = 5.
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").
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.
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.
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.
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.
In challenge mode the boat points north and waits. It only turns and sails when you press Go.
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.
Quick fire. Look at the shape and tap its name. Watch out: some names are made up.
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.
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, and the lava gets faster as you climb.
One door hides the car (the prize). The other two hide goats. Pick a door, and the host opens one of the other doors to show a goat. Do you stay or switch?
| Games | Won | Won % | |
|---|---|---|---|
| Stayed | 0 | 0 | – |
| Switched | 0 | 0 | – |
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.