This simple little creation made of heavy coated paper slips behind the keys with the lowest red bar positioned on the tonic note of any pentascale.  The red bars point to the whole-whole-half-whole intervals that result in the major pentascale.  Move the slider to right or left to transpose.  Turn it upside down to explore the minor keys.  The Major-minor Slider comes with instructions. Kinesthetic, visual and aural benefits.