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Package Slides at the River Landing

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Package Slides at the River Landing

Use test results to choose a design.

Check the Slide Tests

Listen to the test notes. Use them to answer each question.

A Model River Landing

A class builds a model river landing on a classroom table. A foam block stands for a package. Children push it along a flat slide. They test a cloth strip, a smooth plastic strip, and a curved side guide. They change one part at a time. They use the same block, starting mark, and gentle push. They watch how fast the block moves and which way it goes.

Test notes
Bare slide: The block moves fast and straight. It reaches the end.
Cloth strip on the slide: The block moves slowly and straight. It reaches the end.
Smooth plastic strip on the slide: The block moves fast and straight. It reaches the end.
Curved side guide: The block moves fast and turns right. It reaches the end.
1.
The goal is to make the block move more slowly. Which design worked?
Question 1 options
2.
Did the cloth strip stop the block before the end? Circle the note that helps you decide.

3.
The class tests a new strip. Which plan helps them find out what the strip changes?
Question 3 options
4.
Which question needs a new test?
Question 4 options

Choose a Route

Keep using the test notes. Check each design against its goal.

The class puts a paper star to the right of the slide. The next goal is to turn the block toward the star.
5.
Which design turned the block toward the star?
Question 5 options
6.
The star is moved to the left. The guide stays the same. Did its test show a turn toward this new spot?
Question 6 options
7.
Now the goal is to move slowly AND turn right. Which pair of parts is best to test together?
Question 7 options
8.
Did the curved guide change the block's direction? Tell what happened with and without the guide.