# New Classroom Features (Ongoing)

**URL:** <https://cl.desmos.com/t/new-classroom-features-ongoing/4334>\
**Category:** Announcements\
**Tags:** challenge-creator, polypad\
**Created:** [June 2, 2022, 6:32pm UTC](https://cl.desmos.com/t/new-classroom-features-ongoing/4334 "2022-06-02T18:32:03Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![JayChow](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/jaychow/32/1674_2.png) [@JayChow](https://cl.desmos.com/u/JayChow)\
**Post date:** [June 2, 2022, 6:32pm UTC](https://cl.desmos.com/t/new-classroom-features-ongoing/4334/1 "2022-06-02T18:32:03Z")

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# January 2023

- `disableChange` sink added to multiple choice.
- `disableEdit` sink added to math input.

# December 2022

- Line numbers added to the CL editor.
- Center and right alignment is supported in notes.

# November 2022

- `placeholderText` and `placeholderLatex` are now available in the free response and math input components.

# October 2022

- Challenge Creator is now available to all users.
- `hasResponse` is now available in tables.

# August 2022:

- Class codes can now be paused from the the activity and history pages.
- **New Component** Polypad is now available in Activity Builder

# May 2022:

- Empty choice content now hides the choice
- **New** Conic type
- **New** evaluationFrame function creates a frame to store function and variables for future evaluation
- **New** substituteLateVariable takes a latex string, a search string, and a replace string - and returns the latex having made the substitution
- **New** formatLatex takes latex equations and expressions and applies a small set of simplification rules to format the equations and expressions nicely.

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<div class="post-metadata">

**Author:** ![JayChow](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/jaychow/32/1674_2.png) [@JayChow](https://cl.desmos.com/u/JayChow)\
**Post date:** [June 2, 2022, 6:32pm UTC](https://cl.desmos.com/t/new-classroom-features-ongoing/4334/2 "2022-06-02T18:32:40Z")

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Pinned on June 2, 2022, 6:32pm UTC



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<div class="post-metadata">

**Author:** ![JayChow](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/jaychow/32/1674_2.png) [@JayChow](https://cl.desmos.com/u/JayChow)\
**Post date:** [June 2, 2022, 7:38pm UTC](https://cl.desmos.com/t/new-classroom-features-ongoing/4334/3 "2022-06-02T19:38:37Z")

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Closed on June 2, 2022, 7:38pm UTC