Slope Skatepark

What your child will figure out

• Predict how changing rise or run changes a ramp's steepness while the other measurement stays fixed.
• Calculate a positive slope value from a ramp's rise and run before testing it with a skater.
• Recognize that proportional rise-and-run pairs such as 2/1 and 4/2 create equal steepness.
• Transfer ratio reasoning by matching a target steepness with a different rise-and-run pair.

The levels

1. Change one thing

   Predict the effect of increasing rise and then increasing run while the other measurement stays fixed.

2. Name that slope

   Calculate slope from a fixed ramp with rise 3 and run 4.

3. Same steepness?

   Compare 2/1 and 4/2 and recognize their equal ratios and equal angles.

4. Design transfer

   Match a target slope of 1/2 with a new proportional ramp and interpret its downhill ride correctly.