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B: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 19 20 21
Recognise and extend number sequences

Link to activity
Ladybirds cover the numbers.

Load the activity
Count on:
1, 4, 7, 10, 13, 16

Ladybirds on number grids

The buttons used in the activityLadybirds cover the numbers on a number square. Click on a ladybird to make it fly away.

The top button (see left) will show or hide the spots on the ladybirds. The number of spots can indicate whether the number underneath is a multiple of 2, 3, 5 or 7. If it is not a multiple of any of these numbers then one dot is shown. The default is not to show multiples: each ladybird has one spot.

The five buttons on the second row (see above) will make several ladybirds fly away.

Click on the 'change' button for a new number square.

B17: Ladybird 100-square : part of a standard 1 to 100 number grid
B1: Ladybird Number Square
: the sequences go up or down in regular amounts from 1 to 10.

B19: Number grids
Count on in twos, threes... on number grids. Six number grids can be shown.
Click on the number buttons, eg click on the '5' button to generate a 5x5 grid. Click on the squares to colour them, click again to uncolour them. Use the coloured buttons to selct from eight colours.
When two squares are coloured in the 'count on' button will appear. For example if 3 and 6 are coloured in and the 'count on' button is clicked the following sequence will be coloured in:
3, 6, 9, 12, 15, 18 ....
Example of sequences

'Who wants to be a Millionaire?' two-team whiteboard sequences game

B2: Shape Sequences
What shape is the 33rd in a sequence of shapes? Choose from five shapes. Money is won in the same way as the TV programme "Who Wants to be a Millionaire?".
Choose to have either one or two shape sequences on the screen (click the '1' and '2' buttons). The game could be played by two teams with one person from each team being close to the whiteboard to select the shape. Each shape sequence panel can be dragged to the left or right to make it easier for pupils to access the buttons from either side of the whiteboard.

B3: Shape sequences questions: what shape is the 33rd in a sequence of shapes? Click on the question mark to reveal the answer.

Link to number sequences
An example of one of the number sequences

Link to  Square Numbers

Number sequences made from counters Active Algebra

The buttons used in the activityB4: Four different number sequences

The rule for each number sequence can be explained by look at how the counters are arranged. Click in the table to reveal hidden terms of the sequences.

B5: Square numbers

B6: Triangular numbers

Example of activity
Example of activity

Number sequences

B7: Count on and back in 2s, 3s, 4s and 5s

B8: Count on and back in 6s, 7s, 8s, 9s, 10s and 11s

B9: Count on and back in 6s, 7s, 8s, 9s, 10s, 11s, 15s, 19s, 21s and 25s
B10: Count in steps of 0.1, 0.2, 0.25 and 0.5

B11: Ten numbers are in a sequence, two of them are revealed. What are the missing numbers?
The same amount is added each time.

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Random number generators
Link to the number generator
A screenshot of the number generator.

Target board
B12: A flexible whiteboard resource
which generates 24 different sets of numbers; similar to a target board.

Options include:
multiples, square numbers, prime numbers, number sequences

The option buttonsSelect the type of numbers to be generated by clicking on the numbered buttons at the top.
13: multiples, 14: square numbers, 15: prime numbers, 16: number sequences 1, 17: number sequences 2.

The buttons usedThe colour of the number can be changed. Select one of 8 colours then click on a number.

The numbers can be put arranged in a grid, click this button arrange in a table
or arranged randomly, click this button arrange randomly

The numbers can be grouped by dragging them about.

The numbers can be discarded by dragging them to the bin.

Children can use the resource to match pairs:
eg 3x5 and 15 (times-tables 1)
eg 35 and 70 (doubles)

A clock starts when a set of numbers has been generated. The clock can be hidden or shown (click the green clock button). It can be stopped by clicking the 'stop the clock' button!
The clock can be used to see who can match the pairs in the quickest time.

Moving numbers
The number options
Multiples 1: multiples of 2, 5, 10 and 50
Multiples 2: multiples of 2, 3, 4 and 5
Multiples 3: multiples of 6, 7, 8 and 9
The plus buttons generate additional numbers
B20: Moving numbers multiples, factors, prime and square numbers.

Close button
Click on this button to hide the menu or control panel.
Show button
Click on this button to show the menu.

The numbers will swim about the screen, a bit like fish! Click on the side of fish tank to create a feeding frenzy.
Click on a fish to stop it moving and drag it about. Use the buttons shown below to control the fish....

Hide or show the control panel
Click on this button to hide or show the control panel. A slider The sliders on the control panel are used to determine the swimming speed, the feeding frenzy, how long the feeding frenzy lasts and the transparency of the fish.
Stop and start button
Stop and start the fish
with this button
The menu can be at the top or the bottom of the screen. Click at the top if you want it moving to the top. Click at the bottom to move it back to the bottom.
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Odd and even numbers, multiples
Link to activity

B13: Sorting numbers in a Venn diagram: odd, even, multiples, greater than, less than.

The questions

Guess the number game: use multiples, primes and square numbers

The computer thinks of a number from 1 to 100. Your task is to identify the number by asking questions such as:
Is it greater than ...? Is it a multiple of..? Is it a square number? Is it a prime number?
Click on the appropriate buttons to ask the questions. The numbers that are eliminated are shown in red on the 100 grid. Click on 'the number is.." when you think you know the number.
You can ask up to ten questions.
B14: Play Guess the Number

Link to the number grid

B15: Multiples

Show multiples on a number grid. Click on the 'multiple of?' button and enter a multiple. Click 'ok'.
Click on the 'clear' button to clear the grid.

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SAT-type questions : multiples and factors
link to worksheet

Make totals that are multiples of 5 or 10
Find factors eg which two numbers are factors of 63?

B16: Digit card problems

link to activity

B21: Use the digit cards to make multiples (there might be more than one solution)
Click on the cards to show/hide the digits. Click on the show/hide button to show or hide all the digits.

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