Checking correct equation in math input

Questions
1

Hello, I am a novice to CL.
I have been looking through activities and trying to find videos for checking equations in math input and am overwhelmed with different equations.

I am doing a simple activity with my 7th graders for proportional relationships. I am trying to check their equation for a table (I added as an image).
Here is the activity:

Can someone also please share any resource, activity or video that might help in the future?
I plan on doing something like this for 8th grade and writing equations from tables.

Thank you!

2

There are many ways to check if this screen is correct, but here’s one strategy that’s pretty straightforward.

# Create a function based on the student's input
studentFn = simpleFunction(this.latex)

# Would this new function create your table?
allCorrect = 
  studentFn.evaluateAt(2) = 4 and
  studentFn.evaluateAt(1) = 2 and
  studentFn.evaluateAt(7) = 14 and
  studentFn.evaluateAt(5) = 10
correct: allCorrect

Here’s a link to a copy of your activity where you can see this in action.

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3

Thank you!
Is there any video resource that further explains this? I’d like to learn more on this for future activities where students have to enter equations for a given table, graph, and/or description.

5

Isabel, are some videos on using different correct checks, including the function evaluation method shown here.
Correct checks (part 1)
Correct checks (part 2)
Correct checks (part 3)

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