A 2-session design unit for high school. Just as ruled paper keeps handwriting straight, a baseline grid keeps typography in rhythm — every line of text landing on an invisible ruled line. Students set body text to a baseline, then use an 8-point spacing system so headings and gaps share the same steady beat down the page.
Every line of type rests on a baseline; the heading spans two units of the same rhythm. The grid is invisible in the result but felt as order.
Level
Advanced
Grade band
High school
Sessions
2 × 45 min
Total time
90 minutes
Overlay
Baseline / 8pt
Learning objectives
By the end of the unit, students will:
Define a baseline grid and explain how it creates vertical rhythm
Set leading (line spacing) to a consistent unit so text lines land on the baselines
Align headings and paragraph spacing to whole multiples of the baseline
Apply an 8-point spacing system to gaps, padding, and element sizes
Critique a layout for rhythm and spot where the type falls off the grid
Standards alignment
VA:Cr2.1.HSIIaThrough experimentation, practice, and persistence, demonstrate acquisition of skills and knowledge in a chosen art form.
VA:Cr3.1.HSIaApply relevant criteria from traditional and contemporary cultural contexts to examine, reflect on, and plan revisions for works of art and design in progress.
VA:Re8.1.HSIaInterpret an artwork or collection of works, supported by relevant and sufficient evidence found in the work and its various contexts.
Materials
Internet-connected device per student to study the baseline-grid overlay and set type
Ruled paper or printed baseline templates, ruler, and pencil for a hand layout
Printed body text and headings to cut and place, or a design or word-processing app
A short article or block of placeholder text plus two heading levels
Printed examples of typography that follows and ignores a baseline, for the warm-up
Lesson sequence
1
Setting type to a baseline
45 minutes
Warm-up · 5 min
Show two text columns: one where the lines sit evenly, one where the spacing wobbles line to line. Ask which is easier to read. The even one wins every time, and most students cannot say why — the rhythm is felt, not seen. A baseline grid is the ruled paper underneath it.
Main activity · 30 min
(4 min) Students open the baseline-grid overlay and see the evenly ruled horizontal lines that type will sit on.
(6 min) Leading explained: the space from one baseline to the next is the leading. Keep it constant and the text breathes evenly; let it vary and the rhythm stumbles.
(12 min) On a baseline template, students place lines of body text so each rests exactly on a ruled line. They keep the leading to one baseline unit throughout.
(6 min) Headings: a larger heading should still land on a baseline, often spanning two units. Students place a heading and confirm the body text below resumes the rhythm.
(2 min) They mark any line that floats between baselines for fixing.
Same baselines, two columns. Constant leading keeps every line on a rule; uneven leading lets lines drift and the rhythm breaks.
Reflection · 10 min
Why does even leading feel calmer to read than uneven leading?
How did a large heading still fit the rhythm of the small text?
Where in printed books or apps have you felt this rhythm without naming it?
2
Spacing with an 8-point system
45 minutes
Warm-up · 5 min
Show two cards: one where the gaps are 8, 16, and 24 apart, one where they are 7, 13, and 19. The first feels tidy; the second feels accidental. A spacing system picks one unit and uses only its multiples, so every gap relates to every other.
Main activity · 30 min
(6 min) The 8-point idea: choose 8 as the base unit. Margins, gaps between paragraphs, and padding all become multiples of 8 — 8, 16, 24, 32 — which keeps spacing consistent and snaps to the baseline.
(14 min) Students lay out a short article: heading, body, a subheading, more body. They set every vertical gap to an 8-point multiple and keep the body on the baseline.
(6 min) They check the layout against the baseline overlay, fixing any gap that is not a clean multiple.
(4 min) Pair review: partners measure two gaps in each other's work and confirm they follow the system.
An 8-point system: 8 between paragraphs, 16 above a subhead, 24 above the heading. Every gap is a multiple of one unit, and all of it lands on the baseline.
Reflection · 10 min
How did limiting yourself to multiples of 8 change your spacing decisions?
Where did the baseline and the 8-point system reinforce each other?
When might a designer step off the system on purpose, and why?
