LS.3.1.1: Use models to infer the functions of the skeletal and muscular…
Use models to infer the functions of the skeletal and muscular systems.
The North Carolina Standard Course of Study, Science (2023) outcome LS.3.1.1 (From Molecules to Organisms- Structures and Processes) for Grade 3 says: “Use models to infer the functions of the skeletal and muscular systems.” This Fieldbook unit teaches it hands-on, with everyday materials and a printable teacher guide and student sheet for every lesson. Official wording: North Carolina Standard Course of Study, Science (2023).
How Your Body Works Grades 3–5
Why your heart races when you run, what happens to your lunch, how your arm bends and where germs hide. Students take their own pulse, build a model gut and a card elbow, and run a handwashing fair test with glitter 'germs'. Everyday materials, no winter, works in any country.
- How does your arm bend? 45–60 min
Teams build an elbow from card, a paper fastener and two strings, and find that it will only bend if one string pulls while the other goes slack. They feel their own biceps and triceps swap jobs while lifting a bag of rice, and explain why muscles always work in pairs.
Printable practice for LS.3.1.1
These pages practise a closely related idea; the match to LS.3.1.1 is partial.
- How Your Body Works workbook included with the unit
4 English-support pages, 4 practice pages, 4 readings, 1 word wall, 1 unit review, 1 unit test, with answer keys.
- Flowers, Fruit and Seeds: How Plants Make More Plants workbook included with the unit
3 English-support pages, 3 practice pages, 3 readings, 1 word wall, 1 unit review, 1 unit test, with answer keys.
- Keep It Cool: Ice, Insulation and Staying Comfortable workbook included with the unit
1 word wall, 1 English-support page, 1 practice page, 1 reading, 1 unit review, 1 unit test, with answer keys.
- Your Senses: How Does Your Body Know? workbook included with the unit
1 word wall, 1 English-support page, 1 practice page, 1 reading, 1 unit review, 1 unit test, with answer keys.
- Winter Science: Ice, Snow and Staying Warm workbook included with the unit
2 readings, 1 word wall, 1 English-support page, 1 practice page, 1 unit review, 1 unit test, with answer keys.
- Groundhog Day Shadow Science free pack, written for Canada; the skill matches
2 mini books, 1 reading, 1 cut-and-paste page, 1 assessment, with answer keys. Free sample.
Need just this outcome? Build a custom pack from these pages, with its answer key, in about a minute. Custom packs come with All-access and school licences.
Compared with NGSS: 4-LS1-1 (partial).
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