Backlog: small calls on the scripts and videos

None of these blocks anything. The course runs on the default shown on each card until you rule; one tap per card, saved and sent.

What is here: eleven calls left open by the two non-author script reads and the Topic 1 batch build. Question-bank items you parked on 12 Oct are listed at the foot without buttons.

Does the summary video end on a bullet screen?

The course says: Every summary is now ONE video under two minutes (your 14 Oct ruling); each closes on two to four bullets, one per rule line it just said.

Why it is a question:

Cost of changing it: None: a cue line in each summary script.

My recommendation: Keep the bullets on the summary's close.

Do the videos show litmus paper in real red and blue?

The course says: Topic 14 L01 and L02 cues carry the article's monochrome legend (hatched = blue litmus paper, dark gray = red) into a colour video.

Why it is a question:

Cost of changing it: Two cue lines in Topic 14; the figures stay as they are.

My recommendation: Real colour in the videos, hatch stays in print.

Topic 9: keep the swapped video marks on L04 and L05?

The course says: L04 Metals, nonmetals and metalloids is now “definitely a video”; L05 The staircase: where each kind sits is now “could do without”.

Why it is a question:

Cost of changing it: None now; it decides one video in the Topic 9 batch.

My recommendation: Keep the swap.

Does the ‘hotter thing heats the colder thing’ rule reach the pictures?

The course says: Every narration line names the hotter thing as the actor (“The warm air heats the cold ice”). Topic 2's screens still show HEAT IN / HEAT OUT arrow chips, and Topic 3 L05 shows arrows climbing a steel handle.

Why it is a question:

Cost of changing it: About six cue lines in Topics 2 and 3.

My recommendation: Yes: label the hotter thing, keep the arrow, drop the HEAT chips.

Which grade do the videos declare to the generator: 7 for the whole band?

The course says: Every Topic 1 brief says grade “7”, the middle of grades 6–8.

Why it is a question:

Cost of changing it: One constant in the batch tool.

My recommendation: Grade 7 throughout.

Topic 1 L03: does perfume cross a still room in twenty seconds, or soften it?

The course says: The script says perfume opened at the front of a still classroom reaches the back in about twenty seconds, by particle motion alone.

Why it is a question:

Cost of changing it: One sentence; the video is already rendering, so it would be a re-render of L03.

My recommendation: Soften to “before long” at the next Topic 1 fix round, not now.

Topic 7: keep the numbered, unlabelled particle drawings (drawing 1 to drawing 5)?

The course says: L03, L04 and L06 show numbered particle drawings; the grades 3–5 rule bans lettered cases.

Why it is a question:

Cost of changing it: None if kept; nine cue lines if named.

My recommendation: Keep them: it is the exam format.

Topic 1 lessons 6 and 8: extend the final hold from about 1.4 seconds to 2 or 3?

The course says: In both videos the last bullet appears with the final rule sentence and “Okay, now your turn” follows straight on, so the completed closing screen is up for about a second and a half before the file ends. The other ten Topic 1 videos hold 3.5 to 5.5 seconds.

Why it is a question:

Cost of changing it: Two edits, about half an hour each on the server; nothing else changes.

My recommendation: Leave as delivered; the page holds the frame.

Drop the speed arrows from the gas drawings topic-wide, as in Lesson 4?

The course says: The register draws a gas particle with a straight arrow whose length shows its speed. You said the arrows were not useful in Topic 1 Lesson 4; its colour edit drops them and shows the jiggle speed instead. Lessons 8, 9 and 10 and the summary still use them.

Why it is a question:

Cost of changing it: Four visual edits by id; one register line.

My recommendation: Drop them topic-wide once Lesson 4's edit shows the motion reads clearly.

The 39 former mixed-practice items that cannot join a bank as they are: recast, or drop them?

The course says: Folding the mixed practice into the PP100 banks (your ruling with David, 15 Oct) left 39 items that cannot join a bank as they are: 26 yes/no or two-way sort items, 5 three-way partitions, and 8 whose written fourth option both blind readers rejected because the stem names its three classes. They sit untouched in PRACTICE_RETIRED.

Why it is a question:

Cost of changing it: Recast: an afternoon of write-mcqs plus two readers. Drop: nothing.

My recommendation: Drop them; the banks are full and the quizzes cover the recall.

Topic 6: may a lesson end “So, the substance that dissolves is called the solute”?

The course says: L02 and L04 close by naming the term just explained; your 8 Oct boundary allows a definition close.

Why it is a question:

Cost of changing it: None if allowed.

My recommendation: Allowed: a coining lesson may close on its term.

Parked at your request

Listed so they are not lost; no ruling asked.