Proportion … it comes in so many forms and different students grasp different elements at different speeds. Differentiation hell!
What about a little resource that offers up 4x8x8 variations of question ranging from simple direct to proportion to inversely proportional to the square? It’s not a new app, it’s an old app – a fortune-teller snapdragon:
Print, cut and fold (see 92. Snapdragon Fun for instructions)
- The first decision chooses level of difficulty – students pick a number and count through the opening/shutting process.
- The second gives the information to calculate k (eg y=kx) – the number of open/shut moves is specified.
- The third asks you to apply your equation to a hidden number.
- Students increase the level of challenge as they do more questions.
Download the pdf here: Proportion Snapdragon
The editable version is available here: Editable Proportion Snapdragon
You may wish to enlarge the pdf on a photocopier to make it more manageable for bigger hands.