Charts for school
These are the sheets a pupil needs within arm's reach rather than in a bag — the things looked up mid-problem, when going to find the textbook means losing the thread of the problem itself.
Arithmetic first: the times table and the hundred chart. Then notation — Roman numerals, the Greek alphabet as science actually uses it, and the SI prefixes. And two subject sheets: the basic physics formulas with every symbol and unit named, and the solar system with size, distance, year and day set out together.
Above a desk at home, or on a classroom wall. They print on ordinary A4 and A3 — meant to be replaced when they get scruffy, not framed.
THE SOPRANO RECORDER
all 27 notes from C5 to D7 in the Baroque and German systems — and how to tell which one you hold
THE VERTICAL PLANET
from the Challenger Deep to the summit of Everest · one scale, nothing compressed
MAMMALS IN TIME
from the first synapsid to us · 320 million years on one axis
VERTEBRATES IN TIME
when each group appeared · five hundred million years on one axis
GREEK LETTERS IN SCIENCE
10 capitals with a shape of their own, 14 twins of Latin letters, and what each one stands for
THE MOHS HARDNESS SCALE
ten reference minerals and five household probes: who scratches whom
THE PERIODIC TABLE
all 118 elements: symbol, atomic number and IUPAC atomic weight in every cell — blocks in colour, lanthanoids and actinoids offset below
BASIC PHYSICS FORMULAS
fifteen formulas · every letter explained beneath it
ROCK CLASSIFICATION
the three classes, 24 named rocks and the cycle that links them — after USGS and NPS
SPECTRAL LINES
five gases on one wavelength scale, from the violet edge to the red
ANIMALS
the main branches — from comb jellies to chordates · who is actually related to whom
THE TREE OF LIFE
who sits inside whom · where animals, fungi and plants actually are