2026 Papercuts

[flannery-denny]

Algebra 2

• modeling with tables pages needs more vertical space between tables to calculate 1st and 2nd difference
• In log3-fitting, the wbpage "Balancing function growth and axis growth" needs room for students to draw their graphs. Otherwise it's easy to lose track of what things used to look like, which makes comparison much harder than it needs to be
• Add desmos slide to exponential unit where we let kids play with h
• Linearization sequence needs to have people fit their first log model BEFORE learning about scaling axes (from MI)
• In in the Unit Clock Starter file, allow the clock to go in either direction and start from anywhere #2688 2688
• Add an exponential workbook page that compares different interest rates and initial values, and have students calculate savings growth to discover how critical b is
• Incorporate updated unit clock starter file into periodic1 lesson
• In log2-building, the page "What Kind of Model? (Graphs & Scatter Plots)" should have the first graph at the end, marked as a challenge question
• Give away at least five of the points in the scatter plot on "Plotting points on Exploring Periodic Data"

Infrastructure

• Switch to pyret.BootstrapWorld.org
• Rewrite library to calculate residuals and S from row-consuming functions, with a wrapper variant where the column is specified.
• mathunicode that will not turn into mathjax needs a custom font for slide-gen
• Change css for autonumbering within tables:
• default should be to add parens
• remove this rule from pages

++++
<style>
/* Format autonumbering inside the table correctly */
table .autonum::after { content: ')' !important; }
</style>
++++

• in __Authoring/__sample-lesson/authoring/useful-css-rules/ add a rule for optionally removing the parens

E+E

• in E+E - all starter files using examples should use the format X == Y is true, rather than X is Y. Pages need to be updated too
• In E+E, combine the following starter files: Commutativity and Associativity, Distributive Property, Identity Property, Negation
• in E+E - Equivalence...all the "simplify" arrows should already be annoted with "compute". That way when they see other annotated arrows later it will be familiar. Ditto for this wbpage
• Move arrow-label CSS from 7 wbpages in E+E into core.less. (Make sure @span{.arrow}{⟶} isn't used anywhere else!)

Data Science

• update box plots notes page to show the connection between dot plots and box plots - highlight this in the outlier discussion #2423
• In fitting-models, add a page (optional?) where students need to define a model, checking to ensure that it's more than just the function. Talk about pros/cons of large v. small data (inferencing v. cost/efficiency)
• advanced-displays: add "extending the DR" for if-else, and rewrite to so it relies on the full DR (which now comes earlier)
• in the histograms-interpret question, data-cycle-quantitatve needs to be added to workbook.txt, and switched from @opt-printable to @printable-exercise.
• Change fun is-young(r) = r["age"] < 1 end to fun is-young(r) = r["age"] <= 1 end on:
• Composing Table Operations / Composing Table Operations
• Composing Table Operations / Planning Table Operations
• Remove this text from table-functions-dr/create-examples-contracts-purpose-1.adoc

_**Heads up for people working with printed workbooks:** +
Previous versions of this page said that young animals were less than 1 year old, which was a typo. +
`is-young` should include animals that are less than or equal to one year old._

@vspace{2ex}

• Improve synthesize questions in the Data Cycle lesson
• Having reviewed all of the Synthesize questions that didn't already have QinA from all of the Algebra and DS lessons this summer, FD is

1. Not sure how to answer the questions in the Data Cycle lesson.
2. Think it would be a better use of time to come up with more interesting question than to think about how to answer them.

Algebra

• Switch OoO and Simple Datatypes in Alg pathway or actually rewrite OoO as we've been considering doing for years
• Does Function Composition introduce scale? It's needed for the first wbpage
• In the linearity lessons, change starter file and workbook pages that use fun1, fun2, etc into funA, funB, etc.