Muscles work in pairs
Pupil resources for this lesson. Use these sheets alongside the matching slideshow.
BUILD Science Autumn1 W4A Muscle Pairs Pupil
PUPIL WORKSHEET
Muscles work in pairs
Autumn 1 · Week 4 · Lesson A
Name: ____________________________ Date: __________________
Explain how biceps and triceps take turns contracting to bend and actively straighten the elbow, using a safe model.
Use this sheet with the lesson. You may point, sign, speak, draw, write, dictate or direct an adult. Keep your first idea so you can show what changed.
1. The model and the body
Watch the adult model. Match a part to what it represents.
Card strip represents ___.
Turning join represents ___.
Loose string represents ___.
One way the model differs from a body: ___.
PUPIL TASK / Autumn 1 · Week 4 · Lesson A
2. Complete the muscle-pair table
Write, draw, point or dictate as agreed with your teacher.
Place, point to or write CONTRACTS and RELAXES.
| Action | Biceps | Triceps |
| Bend at elbow | ||
| Actively straighten at elbow |
PUPIL TASK / Autumn 1 · Week 4 · Lesson A
3. Keep or correct the statement
Write, draw, point or dictate as agreed with your teacher.
Explain the science using a movement in the model.
| Statement | True / correct it |
| Muscles can pull. | |
| Muscles push bones away. | |
| Biceps and triceps work as a pair. | |
| Bones move on their own. |
PUPIL TASK / Autumn 1 · Week 4 · Lesson A
4. Explain one movement
Write, draw, point or dictate as agreed with your teacher.
Choose a bend or active straighten. You can direct the adult and place labels.
My chosen action: ___.
The ___ contracts while the ___ relaxes.
I checked / changed ___ because ___.
Choose a response route
Agree one route with your teacher; you do not need every route.
Supported
Point to the named muscle and CONTRACTS/RELAXES label while adult operates.
Standard
Explain both roles during bend and active straighten.
Stretch
Explain one limitation of the model and distinguish active straighten from gravity lowering.
Keep this record for Wednesday Week 4.
Source: Science_Teesside/Teaching_Packs/BUILD/lessons/W4A/BUILD_Science_Autumn1_W4A_Muscle_Pairs_Pupil.docx
BUILD Science Autumn1 W4 Cards and Labels
PRINTABLE CARDS / WEEK 4
Muscle names and roles
Cut along the table lines, or point to a card without cutting.
Adult makes a safe table-based card model. Move role labels for each action. No strings around any body part; use loose strings, never stretched elastic.
| Card | Card |
| BICEPS | TRICEPS |
| CONTRACTS | RELAXES |
| CONTRACTS | RELAXES |
| BEND AT ELBOW | ACTIVELY STRAIGHTEN AT ELBOW |
Print only the sets you need. Adult preparation is an alternative to pupil cutting. These are original teaching labels and simplified models.
PRINTABLE CARDS / WEEK 4
Model-component labels
Cut along the table lines, or point to a card without cutting.
Card represents bone; the turning join represents an elbow; a loose manually pulled string represents the effect of muscle pull. String does not contract itself.
| Card | Card |
| CARD = BONE MODEL | TURNING JOIN = ELBOW MODEL |
| LOOSE STRING = MUSCLE-PULL MODEL |
Print only the sets you need. Adult preparation is an alternative to pupil cutting. These are original teaching labels and simplified models.
Source: Science_Teesside/Teaching_Packs/BUILD/resources/BUILD_Science_Autumn1_W4_Cards_and_Labels.docx