Study guide: Pushes, Pulls and Changing Paths
Describe how touching pushes and pulls change a toy’s motion.
Ideas to explain in your own words
- An adult reads toy-motion picture descriptions. A force is a push or pull. Touching can start, stop or redirect motion; a drawing cannot measure its strength.
- Use two picture captions for each pretend toy. Name the observed change rather than guessing an unseen cause. Faster and slower compare motion over the same time.
- Follow a toy’s printed route using your finger. Left and right depend on the map’s fixed arrow. A barrier can change a moving object’s path when they touch.
- Pretend records show one change at a time. Choose the change matching the observed problem. No toy building or small objects are needed; draw the improvement.
Useful vocabulary
- push
- a touch that acts away from you
- start
- still changes to moving
- straight
- the route keeps its direction
- start push
- helps a still toy begin moving
Watch your reasoning
- Check what push and pull each mean. They describe different clues.
- Check what start and stop each mean. They describe different clues.
- Check what straight and left turn each mean. They describe different clues.
A worked review example
Worked reference-card problem: a card states “a touch that acts away from you”; a second states “a tug that acts toward you.” The first fits push and the second fits pull. The reason is the described function or change, not the order of the cards or a favorite name. If their descriptions exchange places, their category labels exchange too. Keep the supplied descriptions attached to the correct case. Worked reference-card problem: a card states “still changes to moving”; a second states “moving changes to still.” The first fits start and the second fits stop. The reason is the described function or change, not the order of the cards or a favorite name. If their descriptions exchange places, their category labels exchange too. Keep the supplied descriptions attached to the correct case. Worked reference-card problem: a card states “the route keeps its direction”; a second states “the route bends toward map left.” The first fits straight and the second fits left turn. The reason is the described function or change, not the order of the cards or a favorite name. If their descriptions exchange places, their category labels exchange too. Keep the supplied descriptions attached to the correct case. Worked reference-card problem: a card states “helps a still toy begin moving”; a second states “stops a toy at the finish.” The first fits start push and the second fits catch barrier. The reason is the described function or change, not the order of the cards or a favorite name. If their descriptions exchange places, their category labels exchange too. Keep the supplied descriptions attached to the correct case.
Make a practice plan
- Use an example from Name a push or a pull. Say what happens and point to the clue that helps explain it.
- Complete Compare before and after motion and correct the specific misconception in its feedback.
- Resolve a changed case from Trace direction on a paper track, then combine the four ideas in the transfer task.