LinguaBeasts
LinguaBeasts
Choose any available area. These levels organize your practice, with no prerequisites or unlock requirements.
Level 1 — Mechanics of Language
Build sentence, spelling and punctuation skills.
Grammar Gremlins
Clear sentences, from agreement to concise wording.
Practice available
10 characters · 150 exercises
Practice with the GremlinsPunctuation Pests
Punctuation guided by structure and intended meaning.
Practice available
10 characters · 150 exercises
Practice with the PestsBad Spelling Bees
Reliable spelling, one troublesome word pattern at a time.
Practice available
9 characters · 135 exercises
Practice with the Bees
Level 2 — Mechanics of Thought
Examine reasoning, claims and arguments.
Logic Lizards
Recognize reasoning traps and answer arguments fairly.
Practice available
10 characters · 150 exercises
Practice with the LizardsCritical Thinking Creatures
Examine claims and the evidence behind them.
Practice available
8 characters · 120 exercises
Practice with the CreaturesArgue Mentals
Consider how arguments are built and challenged.
Practice available
8 characters · 120 exercises
Practice with the Argue Mentals
Try LizardTest
Explore possible reasoning problems in a passage with the Logic Lizards.
Destination: lizardtest.com
Level 3 — Mechanics of Knowledge
Evaluate sources, evidence and responsible AI use.
New from Beastiversity — MathBeasts
A sister area for college math: Foundation Beasts plus gateway-course paths. In development.
Meet the MathBeasts →Beast Check
Check a sentence or passage across all eight beast families at once, or explore prepared examples.