A2 · Two measures, one time record

A2 · Two measures, one time record

Choose a useful job

Create a labelled table or graph of O2's recorded means. Days 0/3/6/9 use equal intervals; mean height is in mm. A solid line and B dashed line carry labels as well as colour. Connected points are a representation, not measured values between checks. Alive-at-Day-9 counts belong in a separate box, not on the height axis.

An ordinary model is A's 38−20=18 mm increase over nine days; B's increase is 6 mm. Choose whether your own representation shows final height, change from Day 0, or both with clear labels. State a recorded pattern and one unrecorded moment or condition. Keep every supplied pair and its unit/time visible.

Complete ordinary source

O2 · Nine-day bean-seedling record

A fictional recorder followed two groups of four bean seedlings. Both groups started with each seedling 20 mm tall. The plan specified the same seed variety, container size, potting mix, 40 mL of water per container each day and checks at the same time of day. Group A was assigned the brighter position; B the shaded position. Actual light level, temperature, soil moisture and whether the watering plan was followed were not recorded. Positions were different, so this is not enough to isolate light as the cause.

The recorder supplied group mean heights. “Mean” here means the four heights added and divided by four. You may use the supplied means; calculating every mean is optional.

Day after the start | A mean height (mm) | B mean height (mm)
0 | 20 | 20
3 | 26 | 22
6 | 32 | 24
9 | 38 | 26

At Day 9 the individual heights were A: 38, 36, 40, 38 mm; B: 26, 28, 24, 26 mm. All four seedlings in each group were recorded alive at that check. These are separate height and alive-at-check observations within the fiction. They do not establish health, later survival, seed production or success for other species.


Complete free alternative

Use these full words and source tables on scrap paper, an exact read-aloud, sign/AAC or learner-directed marks. No diagram hides extra data. Original diagram descriptions and all labels accompany the complete generated text alternative. Blank areas can be replaced by any amount of own paper; no neatness, handling or writing speed requirement. These are supplied/model jobs, not a completed plant investigation.

Original new aid © NeuroForgeIO Pty Ltd 2026 · CC BY 4.0 · https://creativecommons.org/licenses/by/4.0/ . Full source and font exceptions travel in SCIENCE-NOTICES.pdf and the delivered legal companions.

Complete diagram/workspace description

Model graph: horizontal days0,3,6,9 equally spaced, vertical mean height0–40mm equally spaced. A solid labelled line through20,26,32,38; B dashed labelled through20,22,24,26. All eight points have original supplied meaning. A separate day9 box states each4of4alive. A second blank graph uses identical day/unit axes for the learner's own representation, no new observed values. Lines between recorded points are representations.

Complete workspace labels and diagram text

A2 · Two measures, one time record
Complete supplied O2 model · not actual learner measurement
0
10
20
30
40
0
3
6
9
Mean height (mm)
Days after the start
A 38 mm
B 26 mm
Solid A / dashed B. Day 9 alive count is separate: each 4 of 4 alive.
Between-point values were not observed.
©2026 NeuroForgeIO Pty Ltd · SubjectNest · Codex assisted · CC BY 4.0
https://creativecommons.org/licenses/by/4.0/
Science · 1 of 5
Deliver companion: SCIENCE-NOTICES.pdf
A2 · Two measures, one time record
Your blank representation
0
10
20
30
40
0
3
6
9
Mean height (mm)
Days after the start
Choose a table, graph or own marks. Retain unit,time,sample and an
unknown; do not add unrecorded points as observations.
©2026 NeuroForgeIO Pty Ltd · SubjectNest · Codex assisted · CC BY 4.0
https://creativecommons.org/licenses/by/4.0/
Science · 2 of 5
Deliver companion: SCIENCE-NOTICES.pdf
A2 · Two measures, one time record
Your choices · optional own paper, words, sign, AAC or exact scribing
My represented quantity / source
Start / final / change / unit / period
Alive-at-check count separately
A recorded pattern and one unmeasured moment or condition
©2026 NeuroForgeIO Pty Ltd · SubjectNest · Codex assisted · CC BY 4.0
https://creativecommons.org/licenses/by/4.0/
Science · 3 of 5
Deliver companion: SCIENCE-NOTICES.pdf
