Grade 4 Science — Term 2, Week 1

5 day-plan(s) · WeLearn JA SCI T2 G4

Grade 4 Science · Term 2, Week 1 · 60 minutes

Objectives	Describe forces as pushes and pulls that act on objects.
Materials	Toys, springs, arrows
Key vocabulary	force, push, pull, direction, contact
Engage (starter)	"What is happening whenever something starts to move?"
Develop (main)	Interactive: apply pushes and pulls; draw force arrows showing direction; sort contact and non-contact forces; tap-to-reveal.
Plenary (close)	Name two things a force can do.
Assessment	Describes forces.
Teacher notes	Force arrows show size and direction.

Grade 4 Science · Term 2, Week 1 · 60 minutes

Objectives	Measure forces using a force meter.
Materials	Force meters (newton meters), objects
Key vocabulary	force meter, newton, measure, weight
Engage (starter)	"How do we measure how strong a pull is?"
Develop (main)	Interactive: use force meters to measure pulls on objects; record in newtons; compare; tap-to-reveal measuring force.
Plenary (close)	What unit measures force?
Assessment	Measures forces.
Teacher notes	Introduce the newton as the unit.

Grade 4 Science · Term 2, Week 1 · 60 minutes

Objectives	Explain how balanced and unbalanced forces affect motion.
Materials	Tug-of-war picture, toy cart
Key vocabulary	balanced, unbalanced, motion, still
Engage (starter)	"What happens in a tug-of-war when both sides pull equally?"
Develop (main)	Interactive: model balanced forces (no movement) and unbalanced forces (movement); tap-to-reveal the effect on motion.
Plenary (close)	What do balanced forces do to motion?
Assessment	Explains balance of forces.
Teacher notes	Balanced forces mean no change in motion.

Grade 4 Science · Term 2, Week 1 · 60 minutes

Objectives	Describe gravity and distinguish weight from mass.
Materials	Objects, force meter, scale
Key vocabulary	gravity, weight, mass, pull, Earth
Engage (starter)	"What is the difference between weight and mass?"
Develop (main)	Interactive: measure weight with a force meter and mass with a balance; discuss gravity pulling everything down; tap-to-reveal.
Plenary (close)	Which way does gravity pull?
Assessment	Describes gravity and weight.
Teacher notes	Weight is a force; mass is amount of matter.

Grade 4 Science · Term 2, Week 1 · 60 minutes

Objectives	Consolidate forces, measuring, balance, and gravity.
Materials	Force meters, review stations
Key vocabulary	review, force, gravity, newton
Engage (starter)	"Force scientist challenge!"
Develop (main)	Interactive: measure forces and model balanced and unbalanced forces at review stations.
Plenary (close)	What unit measures force?
Assessment	Station accuracy.
Teacher notes	Reinforce forces change motion.