Algebra Substitution

screenshotThis learning resource allows the teacher to demonstrate algebraic substitution.  Different values for n can be chosen.  Students can then be asked to come to the interactive whiteboard to input an answer.  The answer can be immediately checked by the resource.

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Buttons
Keypad:
To allow entry from the interactive whiteboard the keypad can be used to enter answers.  The computer keyboard can also be used.
n=:  Click the empty rectangle next to n= to select the textbox to enter the value of n to be used.  Clicking this also clears all answers entered so far.
Empty Rectangles: Below each expression is an empty rectangle.  Click this to select which answer to attempt.  Clicking it will clear whatever is already in the box.
Check: After entering an answer the student can click this button to see if the answer was correct.  The cross or tick will illuminate to give the result.

3 comments for “Algebra Substitution

  1. ellie!!!
    May 25, 2008 at 10:07 am

    this was amazing at helping my class revise

  2. Margaret
    November 3, 2010 at 3:39 pm

    I have just discoved your fantastic web-site!!!!
    I like this presentation very much and wondered if there were more examples of this resource with different formulae? Such a great idea which would be good to use with different abilities and stages.

  3. Spencer
    November 3, 2010 at 4:04 pm

    This is one of the oldest resources on here and is one I’d like to update with more options on formulae or at least a few versions of differing difficulty. I’d also like to modernise the look a little.

    Spare time is always the problem though. Hopefully I will get to it in the not too distant future. Nice to hear one of the old resources is still used so thanks for commenting.