# \#csa-unit-3 **URL:** https://forum.code.org/tag/csa-unit-3/450.md [Latest](https://forum.code.org/latest.md) · [Categories](https://forum.code.org/categories.md) · [Tags](https://forum.code.org/tags.md) --- ## [CSA Unit 3 Lesson 1 Data Sets '25-'26](https://forum.code.org/t/csa-unit-3-lesson-1-data-sets-25-26/41552)
**Author:** [@mbeck](https://forum.code.org/u/mbeck)\ **Replies:** 7\ **Last updated:** [October 6, 2026, 2:48pm UTC](https://forum.code.org/t/csa-unit-3-lesson-1-data-sets-25-26/41552 "2026-10-06T14:48:02Z")
Hi folks - don’t know if this is where I should post this, but tried searching for the “Teacher’s Lounge” with no luck, so guess I’ll put it here. CSA Unit 3 Lesson 1 Data Sets, which appears to be new for ‘25-’26, does… --- ## [Import FileReader (Code.org version) in Sandbox](https://forum.code.org/t/import-filereader-code-org-version-in-sandbox/38436)
**Author:** [@sheck](https://forum.code.org/u/sheck)\ **Replies:** 13\ **Last updated:** [November 10, 2025, 5:54pm UTC](https://forum.code.org/t/import-filereader-code-org-version-in-sandbox/38436 "2025-11-10T17:54:52Z")
Trying to use the Filereader.toStringArray(String filename) in a SandBox. What is the import library for this? Since this isn’t the java.io version, I am assuming this is in org.code somewhere. --- ## [Array MC practice worksheet](https://forum.code.org/t/array-mc-practice-worksheet/41451)
**Author:** [@lindsay.davis](https://forum.code.org/u/lindsay.davis)\ **Replies:** 1\ **Last updated:** [October 27, 2025, 12:46am UTC](https://forum.code.org/t/array-mc-practice-worksheet/41451 "2025-10-27T00:46:24Z")
Hi all, I cross posted this in the AI tools section of the forum. I used chat GPT to create a practice assignment since the AWS outage kept Code.org and the AP classroom sites from working today. I was happy with the … --- ## [Unit 3 Lesson 6 Object first](https://forum.code.org/t/unit-3-lesson-6-object-first/41471)
**Author:** [@rsatija](https://forum.code.org/u/rsatija)\ **Replies:** 1\ **Last updated:** [October 24, 2025, 3:16am UTC](https://forum.code.org/t/unit-3-lesson-6-object-first/41471 "2025-10-24T03:16:54Z")
Unit 3 lesson 6 is bit confusing. Is file scanner created by code.org? can we have that file? I think slides and lesson has bit of disconnect. Please help, can we have a video on this lesson? --- ## [CSA G Slides Unit Anchor Charts](https://forum.code.org/t/csa-g-slides-unit-anchor-charts/40086)
**Author:** [@zrmckeever](https://forum.code.org/u/zrmckeever)\ **Replies:** 2\ **Last updated:** [November 11, 2024, 7:36pm UTC](https://forum.code.org/t/csa-g-slides-unit-anchor-charts/40086 "2024-11-11T19:36:48Z")
Hey everyone, I made 3’ x 2’ anchor charts by chopping and combining Code.org slides. Our in-house graphics/printing department printed and laminated them for “cheap.” These have been an excellent addition to my walls. … --- ## [CSA U3L5 Writing Algorithms with Arrays](https://forum.code.org/t/csa-u3l5-writing-algorithms-with-arrays/38765)
**Author:** [@ebielech1](https://forum.code.org/u/ebielech1)\ **Replies:** 3\ **Last updated:** [December 6, 2023, 2:59pm UTC](https://forum.code.org/t/csa-u3l5-writing-algorithms-with-arrays/38765 "2023-12-06T14:59:01Z")
The answer key doesn’t include any answers in this document. Can anyone share the answers? --- ## [Unit 3 lesson 8 - Algorithms Unplugged (Or Extra practice)](https://forum.code.org/t/unit-3-lesson-8-algorithms-unplugged-or-extra-practice/38727)
**Author:** [@madeline\_r\_burton](https://forum.code.org/u/madeline_r_burton)\ **Replies:** 2\ **Last updated:** [November 30, 2023, 3:49am UTC](https://forum.code.org/t/unit-3-lesson-8-algorithms-unplugged-or-extra-practice/38727 "2023-11-30T03:49:02Z")
Hi Folks, I was working on Unit 3 Lesson 8 right around the time that google single sign-on changed to need school/district approval this year. We were a little behind getting that approval, ergo I needed an unplugged l… --- ## [Unit 3 Social Good project - number of lines in files](https://forum.code.org/t/unit-3-social-good-project-number-of-lines-in-files/37371)
**Author:** [@jranta](https://forum.code.org/u/jranta)\ **Replies:** 7\ **Last updated:** [December 15, 2022, 1:24am UTC](https://forum.code.org/t/unit-3-social-good-project-number-of-lines-in-files/37371 "2022-12-15T01:24:29Z")
How do you expect students to get the count of number of lines in the text files? In the previous lessons (lesson 9 for example) the number of lines in national parks is given to the student. I can show my kids how to wr… --- ## [Create and Assign Java Lab Assignments](https://forum.code.org/t/create-and-assign-java-lab-assignments/37305)
**Author:** [@scerruti](https://forum.code.org/u/scerruti)\ **Replies:** 5\ **Last updated:** [December 3, 2022, 2:50pm UTC](https://forum.code.org/t/create-and-assign-java-lab-assignments/37305 "2022-12-03T14:50:13Z")
I was attempting to create a supplemental lesson in Code.org CSA based on the FileReader in Arrays and Algorithms. I was able to create the code template in Java Lab and share it with the students but they were not able … --- ## [Scoring Question: Unit 3 FRQ TicketTracker](https://forum.code.org/t/scoring-question-unit-3-frq-tickettracker/37255)
**Author:** [@codydiliberto](https://forum.code.org/u/codydiliberto)\ **Replies:** 3\ **Last updated:** [November 26, 2022, 3:30pm UTC](https://forum.code.org/t/scoring-question-unit-3-frq-tickettracker/37255 "2022-11-26T15:30:44Z")
The scoring notes for the TicketTracker FRQ part B, calculate the average price, explicitly state the response will not earn a point if the students: • calculate the sum of all elements in the array However, the sum wo…