Como as máquinas aprendem: tipos de aprendizado de IA
B2 Portuguese listening practice · Brazilian Portuguese · Curated for upper-intermediate learners
About this clip
A 4:49 video in Portuguese at B2 level, suitable for upper-intermediate learners. The speech is at a natural pace around 158 words per minute, rated 4.1/5, medium listening difficulty by Reelang’s algorithm.
What this clip covers:
- ▸Science - Discoveries, experiments, and how the world works.
- ▸Technology - Tech, gadgets, software, AI, and the digital world.
- ▸Self-Improvement - Life advice, habits, motivation, and personal growth.
- ▸Health & Wellness - Fitness, mental health, nutrition, sleep, and self-care.
From Seja curioso — TED-Ed↗ on YouTube.Watch original
Vocabulary frequency
How common is the vocabulary in this B2 Portuguese listening practice listening practice?
85.1%
of words are in the top 2,000 most common Portuguese words
Based on this reel’s transcript, most of the vocabulary is high-frequency, everyday Portuguese.
General Portuguese frequency
73.7%
Top 1,000
85.1%
Top 2,000
95.6%
Top 5,000
Spoken Portuguese frequency
89.7%
Top 1,000
96.6%
Top 2,000
100%
Top 5,000
👄 Conversational vocabulary
This reel’s words appear more often in subtitle-based spoken-Portuguese data than in general usage, so it may feel closer to everyday conversation.
Words above this video’s level
Quick glosses for vocabulary that goes beyond this video’s B2 level.
diagnosticar
3×
Rare / outside top 5,000
to diagnose
autodidatas
2×
Rare / outside top 5,000
self-taught people
acometem
1×
Rare / outside top 5,000
to affect
alimente
1×
Rare / outside top 5,000
to feed
autodirigidos
1×
Rare / outside top 5,000
self-directed
decisões enigmáticas
1×
mysterious or puzzling decisions
Source: wordfreq 3.1.1 (general) · SUBTLEX-PT-BR 2012 (spoken). Buckets approximate; exact ranks not stored.
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