Today it's time to talk about the respiratory system. As we recorded some videos in 4th grade, we can use them to refresh all. Pay attention and enjoy it!
- Respiratory system 4ºA (20-21)
- Respiratory system 4ºB (20-21)
- Respiratory system 4MIX I (20-21)
- Respiratory system 4MIX II (20-21)
You also should watch the videos below to remember everything well:
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