table.sample { border-width: 1px; border-spacing: 1px; border-style: solid; border-color: grey; border-collapse: separate; background-color: white; } table.sample2 { border-width: 1px; border-spacing: 1px; border-style: solid; border-color: red; border-collapse: separate; background-color: white; }  Home > Algebra   Whiteboard Worksheets algebra resources that could be used to introduce pupils to the language of algebra as a means for solving a variety of problems. All the resources can be evaluated on this website but a password is required to remove a message that will appear on the screen. If your school has subscribed to the Active Maths resources then you'll have a password.
 Lots of different addition and subtraction sums with one of the numbers hidden. D10: Hidden numbers 1 D16: Hidden numbers 2 Click on the options buttons to change the sums. D42: Hidden Numbers flash cards M25: Sum puzzle What are the numbers in the circles? M38: Another sum puzzle The three numbers in each line must add up to the same total. The total can be shown or hidden. The number options are: 1. Small whole numbers 2. Multiples of ten 3. Decimals 4. Positive and negative numbers. Use the other buttons to show a few puzzles or just one. M16: Solve simple equations

 Balancing problems M39: What is the weight of a gold bar? Use the 1 ,2 and 3 buttons to generate the problems. Three levels of difficulty: level 1: small whole number solutions level 2: multiple of ten solutions level 3: gold bars on both sides M30: What number does each shape represent? (positive numbers) M31: What number does each shape represent? (positive and negative numbers)

 Number sequences A3: Continue the sequences of shapes Click to the right of the shapes to reveal the next shape.  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. Number sequences: formulas B4: Four different number sequences Use the slider to determine the number of red circles. The rule for each number sequence can be explained by looking at how the counters are arranged. Click in the table to reveal hidden terms of the sequences. B5: Square numbers B6: Triangular numbers

 Number sequences: formulas M10: Pattern 1 M11: Pattern 2 A repeating pattern is made from squares and circles. How many squares will there be with 17 circles? How many circles with 20 squares? Use the slider to determine the number of squares. A fence is made from posts and bars. How many bars will there be with 20 posts? M12: Fence 1 (two bars between each pair of posts). M13: Fence 2 (three bars between each pair of posts) Work out the value of each shape. The total for each row and column is shown. Use the sliders to input your answers. Click on the 'check' button to see how many are correct. M22: Shape Puzzle 1 M23: Shape Puzzle 2 Three of the same shape will not appear in a row. M24: Shape Puzzle 3 The solutions can be negative numbers. M44: Follow rules: Double the number in the square and add or subtract the number in the triangle to make the number in the circle.

 Functions M33: What are the missing numbers? The same functions are used in each line. Can be used to develop algebraic thinking, for example, the numbers in the triangles are 4 times the numbers in the squares. M36: Mystery calculator: what functions do the 9 mystery buttons carry out? The buttons showing polygon people carry out different functions. Click on a button to see what it does. The results are saved in the table. There are six 'levels': 1. Fixed add and subtract (the same operations everytime) 2. Random add and subtract 3. Fixed multiply and divide 4. Fixed multiply and add or subtract eg x 2 + 1 5. Random multiply and add or subtract 6. A variety of operations, eg rounding M45: Work out the height of a box Work out the height of a pile of boxes and an individual box. Click on the question mark and under each pile to reveal the answers. M20: Work out the distance from A to B eg. If the distance from A to B is seven times as far as from B to C (see example) 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. M37: Function machines: one or two function machines Click on the '1' button to generate a new single function machine, click on the '2' button for a new double function machine. Click on the yellow button to hide or show the inverse functions. Click inside the function machine to hide or show the function. The purple functions can be swapped over: drag them by the eyes! Click on the input and outputs to hide or show them. Use these buttons to change the operations in the function machines.

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