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31 Wall 2 (Percentage Increase)

Mental Arithmetic PowerPoint Presentation

31 Wall 2 (Percentage Increase)

Another very nice presentation on "Percentage Increase/Decrease. Whack a tennis ball at the chalked circle on the wall followed by one at one of the bottles. Green bottles give percentage increase and blue bottles the percentage decrease. Students work out the new quantity for the chalked circles. Authentic "tennis ball" and "breaking glass" sounds enhance the presentation. There are 50 pre-set questions and answers complete with animation and sound. Ever felt like banging your head against the wall with a class? Use this one!
Don't be without it!

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50 y y n rating


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